OTS (Open Testing Service) · Khuddam-ul-Hujjaj/ Nazims for Hajj (OTS 2027 - Includes All NTS Past Papers)
Most Repeated GK MCQs from Past Papers MCQs with Answers & Explanations (Page 101)
Practice verified Most Repeated GK MCQs from Past Papers MCQs with Answers & Explanations for Khuddam-ul-Hujjaj/ Nazims for Hajj (OTS 2027 - Includes All NTS Past Papers) preparation. Featuring solved questions, detailed explanations, and past paper answers (Page 101).
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2001
If 2 → 6, 3 → 12, 4 → 20, 5 → 30, then 9 → ?
Correct Option
Option B
Explanation
The pattern is n×(n+1). 2 × 3 = 6 3 × 4 = 12 4 × 5 = 20 5 × 6 = 30 9 × 10 = 90 Last verified on 02-08-2026 Related MCQs Find the missing number 6,?,21,33,48. 12 14 8 20 اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Series pattern is =6+9+12+15 6+6=12 is missing At the end of a conference, the 12 people present all shake hands with each other once. How many handshakes will there be altogether? 66 76 86 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Each handshake involves 2 people. Formula for handshakes = n_(n-1) / 2 Where n = number of people Here n = 12 Handshakes = 12 _ (12-1) / 2 Handshakes = 12 * 11 / 2 Handshakes = 132 / 2 Handshakes = 66 Last verified on 03-08-2026 Find the next number: 2, 12, 36, 80, 150, _____? 220 240 252 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Pattern: n _ (n+1) _ (n+1) 1st term: 1 _ 2 _ 1 = 2 2nd term: 2 _ 3 _ 2 = 12 3rd term: 3 _ 4 _ 3 = 36 4th term: 4 _ 5 _ 4 = 80 5th term: 5 _ 6 _ 5 = 150 6th term: 6 _ 7 _ 6 = 252 Last verified on 02-08-2026 If 2 → 6, 3 → 12, 4 → 20, 5 → 30, then 9 → ? 81 90 99 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is n×(n+1). 2 × 3 = 6 3 × 4 = 12 4 × 5 = 20 5 × 6 = 30 9 × 10 = 90 Last verified on 02-08-2026 Find the next term: 5, 12, 26, 54, _____? 110 112 114 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is ×2 + 2: 5 × 2 + 2 = 12 12 × 2 + 2 = 26 26 × 2 + 2 = 54 54 × 2 + 2 = 110 Last verified on 02-08-2026
2002
The Synonym of Pernicious is?
Correct Option
Option C
Explanation
Pernicious means نقصان دہ Harmful means نقصان دہ Last verified on 02-08-2026 Related MCQs Choose the word most similar EXPRESS? Hide Describe Secret None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Express and Describe means بیان کرنا Last verified on 22-08-2026 The Synonym of Trial is? Test Success Reward None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Trial means an attempt, test, or examination . Trial means ایک کوشش، امتحان، یا امتحان Test means ایک کوشش، امتحان، یا امتحان Last verified on 10-08-2026 The Synonym of Diligence is? Hard work Carelessness Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Diligence means careful and persistent effort . Diligence means محتاط اور مسلسل کوشش Hard work means محنت Last verified on 10-08-2026 The Synonym of Quarantine is? Isolation Emergency Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Quarantine means علیحدگی Isolation means علیحدگی Last verified on 08-08-2026 The Synonym of Modify is? Change Subscribe Bring together None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Modify means تبدیلی Change means تبدیلی Last verified on 08-08-2026
2003
In computer architecture, which cache memory level is typically exclusive to each CPU core and provides the fastest data access?
Correct Option
Option A
Explanation
L1 Cache is the fastest cache memory. It is typically exclusive to each CPU core . It stores the most frequently used instructions and data . Being closest to the CPU core , it has the lowest latency . Additional information : L2 Cache is larger but slower than L1. It is usually dedicated to each core in many processors . L3 Cache is the largest cache. It is commonly shared among all CPU cores. Related MCQs Which command in AutoCAD is used to make round edges? آٹوکیڈ میں کون سا کمانڈ کناروں کو گول کرنے کے لیے استعمال ہوتا ہے؟ Trim Fillet Offset Extend اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The command used in AutoCAD to make round edges is th e Fillet command Shortcut: F → Enter. It creates a curved connection with a specified radius. It is commonly used for rounding the corners of lines, arcs, polylines, and other objects. Which software is commonly used for road geometry design? سڑک کی جیومیٹری کی ڈیزائننگ کے لیے عام طور پر کون سا سافٹ ویئر استعمال کیا جاتا ہے؟ AutoCAD Civil 3D MS Excel MS Word Adobe Photoshop اس سوال کو وضاحت کے ساتھ پڑھیں Explanation AutoCAD Civil 3D is widely used for road and highway geometric design. It can create horizontal and vertical alignments . The ARC command is available in which menu in AutoCAD? Format Modify Draw Tools اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The ARC command is used to draw an arc in AutoCAD. It is available under the Draw menu. Arc can be created using different methods and parameters. It is commonly used in 2D drafting. A 2D drawing is converted into 3D by which command in AutoCAD? Trim Offset Extrude Fillet اس سوال کو وضاحت کے ساتھ پڑھیں Explanation EXTRUDE converts a 2D closed object into a 3D solid or surface. It extends the object along the Z-axis. It is commonly used to create 3D models from 2D profiles. For example, a 2D circle can be extruded to create a 3D cylinder. Which output device is used to display video images on a large screen? بڑی اسکرین پر ویڈیو تصاویر دکھانے کے لیے کون سا آؤٹ پٹ ڈیوائس استعمال ہوتا ہے؟ Scanner Printer Projector None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A projector is an output device used to display video images on a large screen. It receives video signals from a computer or other device. Projectors are commonly used in classrooms, offices, and presentations . Additional information : A scanner is an input device used to digitize documents and images. A printer produces a hard copy of digital information. Last verified on 12-08-2026
2004
If yesterday was Thursday, what day will be after 100 days?
Correct Option
Option B
Explanation
If yesterday was Thursday, then today is Friday. 100 ÷ 7 = 14 remainder 2, so 100 days later will be 2 days after Friday, which is Sunday . Last verified on 02-08-2026 Related MCQs If SECURE → TFDVSF and INVEST → JOWFTU, then AGENT → ? AHFOS BHFOU BHFNU None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Pattern: Each letter is shifted +1 SECURE → T F D V S F S+1=T, E+1=F, C+1=D, U+1=V, R+1=S, E+1=F INVEST → J O W F T U I+1=J, N+1=O, V+1=W, E+1=F, S+1=T, T+1=U So AGENT → A+1=B, G+1=H, E+1=F, N+1=O, T+1=U Answer: BHFOU Last verified on 21-08-2026 Find the number of cement bags required for 400 cft concrete in the ratio 1:6:12: 20 bags 26 bags 30 bags 36 bags اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Given ratio 1 : 6 : 12 Step 1: Total ratio 1 + 6 + 12 = 19 Cement = 1 part . Step 2: Dry volume of concrete For concrete, dry volume is usually taken as: 400 × 1.54 = 616 ft 3 Step 3: Cement volume 19 1 × 616 = 32.42 ft 3 Step 4: Number of cement bags 1 cement bag (50 kg) ≈ 1.25 ft³ 1.25 32.42 = 25.94 ≈ 26 bags If yesterday was Thursday, what day will be after 100 days? Saturday Sunday Monday None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation If yesterday was Thursday, then today is Friday. 100 ÷ 7 = 14 remainder 2, so 100 days later will be 2 days after Friday, which is Sunday . Last verified on 02-08-2026 If A = 1, B = 2, C = 3, ... then LOGIC = ? 44 45 46 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation L = 12, O = 15, G = 7, I = 9, C = 3. 12 + 15 + 7 + 9 + 3 = 46 . Last verified on 02-08-2026 C in Roman Language stands for رومن زبان میں سی کا مطلب ہے۔ 50 100 150 200 اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Roman Number 51-100 51 - LI 52 - LII 53 - LII 54 - LIV 55 - LV 56 - LVI 57 - LVII 58 - LVIII 59 - LIX 60 - LX 61 - LXI 62 - LXII 63 - LXIII 64 - LXIV 100 - C Last updated 18-07-2026 by NA
2005
If A = 1, B = 2, C = 3, ... then LOGIC = ?
Correct Option
Option C
Explanation
L = 12, O = 15, G = 7, I = 9, C = 3. 12 + 15 + 7 + 9 + 3 = 46 . Last verified on 02-08-2026 Related MCQs If SECURE → TFDVSF and INVEST → JOWFTU, then AGENT → ? AHFOS BHFOU BHFNU None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Pattern: Each letter is shifted +1 SECURE → T F D V S F S+1=T, E+1=F, C+1=D, U+1=V, R+1=S, E+1=F INVEST → J O W F T U I+1=J, N+1=O, V+1=W, E+1=F, S+1=T, T+1=U So AGENT → A+1=B, G+1=H, E+1=F, N+1=O, T+1=U Answer: BHFOU Last verified on 21-08-2026 Find the number of cement bags required for 400 cft concrete in the ratio 1:6:12: 20 bags 26 bags 30 bags 36 bags اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Given ratio 1 : 6 : 12 Step 1: Total ratio 1 + 6 + 12 = 19 Cement = 1 part . Step 2: Dry volume of concrete For concrete, dry volume is usually taken as: 400 × 1.54 = 616 ft 3 Step 3: Cement volume 19 1 × 616 = 32.42 ft 3 Step 4: Number of cement bags 1 cement bag (50 kg) ≈ 1.25 ft³ 1.25 32.42 = 25.94 ≈ 26 bags If yesterday was Thursday, what day will be after 100 days? Saturday Sunday Monday None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation If yesterday was Thursday, then today is Friday. 100 ÷ 7 = 14 remainder 2, so 100 days later will be 2 days after Friday, which is Sunday . Last verified on 02-08-2026 If A = 1, B = 2, C = 3, ... then LOGIC = ? 44 45 46 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation L = 12, O = 15, G = 7, I = 9, C = 3. 12 + 15 + 7 + 9 + 3 = 46 . Last verified on 02-08-2026 C in Roman Language stands for رومن زبان میں سی کا مطلب ہے۔ 50 100 150 200 اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Roman Number 51-100 51 - LI 52 - LII 53 - LII 54 - LIV 55 - LV 56 - LVI 57 - LVII 58 - LVIII 59 - LIX 60 - LX 61 - LXI 62 - LXII 63 - LXIII 64 - LXIV 100 - C Last updated 18-07-2026 by NA
2006
Find the next term: 5, 12, 26, 54, _____?
Correct Option
Option A
Explanation
The pattern is ×2 + 2: 5 × 2 + 2 = 12 12 × 2 + 2 = 26 26 × 2 + 2 = 54 54 × 2 + 2 = 110 Last verified on 02-08-2026 Related MCQs Find the missing number 6,?,21,33,48. 12 14 8 20 اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Series pattern is =6+9+12+15 6+6=12 is missing At the end of a conference, the 12 people present all shake hands with each other once. How many handshakes will there be altogether? 66 76 86 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Each handshake involves 2 people. Formula for handshakes = n_(n-1) / 2 Where n = number of people Here n = 12 Handshakes = 12 _ (12-1) / 2 Handshakes = 12 * 11 / 2 Handshakes = 132 / 2 Handshakes = 66 Last verified on 03-08-2026 Find the next number: 2, 12, 36, 80, 150, _____? 220 240 252 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Pattern: n _ (n+1) _ (n+1) 1st term: 1 _ 2 _ 1 = 2 2nd term: 2 _ 3 _ 2 = 12 3rd term: 3 _ 4 _ 3 = 36 4th term: 4 _ 5 _ 4 = 80 5th term: 5 _ 6 _ 5 = 150 6th term: 6 _ 7 _ 6 = 252 Last verified on 02-08-2026 If 2 → 6, 3 → 12, 4 → 20, 5 → 30, then 9 → ? 81 90 99 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is n×(n+1). 2 × 3 = 6 3 × 4 = 12 4 × 5 = 20 5 × 6 = 30 9 × 10 = 90 Last verified on 02-08-2026 Find the next term: 5, 12, 26, 54, _____? 110 112 114 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is ×2 + 2: 5 × 2 + 2 = 12 12 × 2 + 2 = 26 26 × 2 + 2 = 54 54 × 2 + 2 = 110 Last verified on 02-08-2026
2007
Find the next term: 6, 13, 27, 55, ____?
Correct Option
Option B
Explanation
The pattern is: ×2 + 1 6 × 2 + 1 = 13 13 × 2 + 1 = 27 27 × 2 + 1 = 55 55 × 2 + 1 = 111 Last verified on 02-08-2026 Related MCQs Find the missing number 6,?,21,33,48. 12 14 8 20 اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Series pattern is =6+9+12+15 6+6=12 is missing At the end of a conference, the 12 people present all shake hands with each other once. How many handshakes will there be altogether? 66 76 86 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Each handshake involves 2 people. Formula for handshakes = n_(n-1) / 2 Where n = number of people Here n = 12 Handshakes = 12 _ (12-1) / 2 Handshakes = 12 * 11 / 2 Handshakes = 132 / 2 Handshakes = 66 Last verified on 03-08-2026 Find the next number: 2, 12, 36, 80, 150, _____? 220 240 252 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Pattern: n _ (n+1) _ (n+1) 1st term: 1 _ 2 _ 1 = 2 2nd term: 2 _ 3 _ 2 = 12 3rd term: 3 _ 4 _ 3 = 36 4th term: 4 _ 5 _ 4 = 80 5th term: 5 _ 6 _ 5 = 150 6th term: 6 _ 7 _ 6 = 252 Last verified on 02-08-2026 If 2 → 6, 3 → 12, 4 → 20, 5 → 30, then 9 → ? 81 90 99 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is n×(n+1). 2 × 3 = 6 3 × 4 = 12 4 × 5 = 20 5 × 6 = 30 9 × 10 = 90 Last verified on 02-08-2026 Find the next term: 5, 12, 26, 54, _____? 110 112 114 None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The pattern is ×2 + 2: 5 × 2 + 2 = 12 12 × 2 + 2 = 26 26 × 2 + 2 = 54 54 × 2 + 2 = 110 Last verified on 02-08-2026
2008
A file is copied from Computer A to Computer B. Which device is most commonly used?
Correct Option
Option A
Explanation
A USB Flash Drive is the most commonly used device for copying files from one computer to another . It is a portable storage device that connects through a USB port . Users can easily copy, move, and back up files using a USB flash drive. It is reusable, lightweight, and compatible with most computers. It is also known as a USB drive, pen drive, or thumb drive . Last verified on 02-08-2026 Related MCQs Which command in AutoCAD is used to make round edges? آٹوکیڈ میں کون سا کمانڈ کناروں کو گول کرنے کے لیے استعمال ہوتا ہے؟ Trim Fillet Offset Extend اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The command used in AutoCAD to make round edges is th e Fillet command Shortcut: F → Enter. It creates a curved connection with a specified radius. It is commonly used for rounding the corners of lines, arcs, polylines, and other objects. Which software is commonly used for road geometry design? سڑک کی جیومیٹری کی ڈیزائننگ کے لیے عام طور پر کون سا سافٹ ویئر استعمال کیا جاتا ہے؟ AutoCAD Civil 3D MS Excel MS Word Adobe Photoshop اس سوال کو وضاحت کے ساتھ پڑھیں Explanation AutoCAD Civil 3D is widely used for road and highway geometric design. It can create horizontal and vertical alignments . The ARC command is available in which menu in AutoCAD? Format Modify Draw Tools اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The ARC command is used to draw an arc in AutoCAD. It is available under the Draw menu. Arc can be created using different methods and parameters. It is commonly used in 2D drafting. A 2D drawing is converted into 3D by which command in AutoCAD? Trim Offset Extrude Fillet اس سوال کو وضاحت کے ساتھ پڑھیں Explanation EXTRUDE converts a 2D closed object into a 3D solid or surface. It extends the object along the Z-axis. It is commonly used to create 3D models from 2D profiles. For example, a 2D circle can be extruded to create a 3D cylinder. Which output device is used to display video images on a large screen? بڑی اسکرین پر ویڈیو تصاویر دکھانے کے لیے کون سا آؤٹ پٹ ڈیوائس استعمال ہوتا ہے؟ Scanner Printer Projector None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A projector is an output device used to display video images on a large screen. It receives video signals from a computer or other device. Projectors are commonly used in classrooms, offices, and presentations . Additional information : A scanner is an input device used to digitize documents and images. A printer produces a hard copy of digital information. Last verified on 12-08-2026
2009
Which view is used to sort and rearrange slides in Microsoft PowerPoint?
Correct Option
Option B
Explanation
Slide Sorter View is used to sort, rearrange, copy, and delete slides in Microsoft PowerPoint. It displays all slides as thumbnails on one screen . You can easily drag and drop slides to change their order. It is useful for organizing large presentations . Last verified on 28-07-2026 Related MCQs MS PowerPoint is used for _______? ایم ایس پاورپوائنٹ کس کے لیے استعمال ہوتا ہے؟ Presentation Drafting Worksheet None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation PowerPoint is used for Create presentations from scratch or a template. Add text, images, art, and videos . Select a professional design with PowerPoint Designer . Last verified on 03-04-2026 What is the purpose of the Slide Sorter view in PowerPoint? پاورپوائنٹ میں سلائیڈ سارٹر ویو کا مقصد کیا ہے؟ Rearrange slides in a presentation To apply formatting to all slides in a presentation Add animations to slides None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Slide Sorter View main purpose is to rearrange, move, copy, delete, or organize slides easily. Its in PowerPoint displays all slides as small thumbnails on one screen. It is especially useful for checking the overall sequence and structure of a presentation . It can also help manage slide transitions across multiple slides. Last verified on 09-08-2026 Which command will you use in PowerPoint if you need to change the color of different objects without changing content? اگر آپ کو مواد کو تبدیل کیے بغیر مختلف اشیاء کا رنگ تبدیل کرنے کی ضرورت ہو تو آپ پاور پوائنٹ میں کون سی کمانڈ استعمال کریں گے؟ Design template Color scheme Object color Font color اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Color Scheme is used to change the colors of different objects without changing their content. It provides a coordinated set of colors for presentation elements. Additional information: Design Template changes the overall design and appearance of slides. Object Color changes the color of a specific selected object. Font Color changes only the color of text. Last verified on 09-08-2026 In Microsoft PowerPoint, which tab is used to display all slides during a presentation? مائیکروسافٹ پاورپوائنٹ میں پریزنٹیشن کے دوران تمام سلائیڈز دکھانے کے لیے کون سا ٹیب استعمال ہوتا ہے؟ Slide Show Insert Design None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The Slide Show tab is used to display all slides during a PowerPoint presentation . It starts the presentation in full-screen mode. You can begin the slideshow from the first slide or the current slide . Additional information : F5 starts the slideshow from the first slide . Shift + F5 starts the slideshow from the current slide . Last verified on 09-08-2026 Through which tab can an object be animated in MS PowerPoint? ایم ایس پاورپوائنٹ میں کسی آبجیکٹ کو متحرک (اینیمیٹ) کرنے کے لیے کون سا ٹیب استعمال کیا جاتا ہے؟ Animations Insert Design None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Animations tab is used to apply animation effects to objects in MS PowerPoint. It allows effects such as Entrance, Emphasis, Exit, and Motion Paths . The Animations tab also provides options to control the timing and order of effects . Additional information : Insert tab is used to add objects such as pictures, tables, shapes, and charts. Design tab is mainly used for themes, colors, fonts, and slide background. Last verified on 09-08-2026
2010
The Antonym of Lavish is?
Correct Option
Option D
Explanation
Lavish means بہت فراخ یا پرچر Deficient means کمی Scanty means بہت کم Frugal means کفایت شعاری Last verified on 26-07-2026 Related MCQs The Antonym of Imperceptible is? Invisible Unnoticeable Noticeable None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Imperceptible means too small or subtle to be noticed . Noticeable means easy to see, hear, or recognize . Imperceptible means بہت چھوٹا یا لطیف Noticeable means دیکھنے، سننے یا پہچاننے میں آسان Last verified on 11-08-2026 The Antonym of Prevail is? Fail Win Win out None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Prevail means to succeed, win, or prove superior . Fail means to not succeed . Prevail means کامیاب ہونا، جیتنا، یا برتر ثابت کرنا Fail means کامیاب نہ ہونے کے لیے Last verified on 11-08-2026 The Antonym of Disenfranchise is? Enfranchise Surprise Exclude None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Disenfranchise means کسی کو حق یا استحقاق سے محروم کرنا Enfranchise means حقوق یا ووٹ کا حق دینے کے لیے Last verified on 06-08-2026 What is the opposite of fungal? Bacterial Viral Herbal Sterile اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Fungal: فنگس (کھمبی یا پھپھوندی) سے متعلق Sterile جراثیم سے پاک The Antonym of Elevate is? Uplift Lift Raise Depress اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Depress افسردہ کرنا is the opposite of elevate بلند کرنا
2011
The cause of malaria is _____?
Correct Option
Option C
Explanation
Malaria is caused by the parasite Plasmodium . It is transmitted to humans through the bite of an infected female Anopheles mosquito . Malaria is a parasitic disease. It mainly affects the liver and red blood cells. Common symptoms include fever, chills, headache, and sweating . Last verified on 11-07-2026 Related MCQs The cause of malaria is _____? ملیریا کس کی وجہ سے ہوتا ہے؟ Bacteria Virus Plasmodium Fungus اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Malaria is caused by the parasite Plasmodium . It is transmitted to humans through the bite of an infected female Anopheles mosquito . Malaria is a parasitic disease. It mainly affects the liver and red blood cells. Common symptoms include fever, chills, headache, and sweating . Last verified on 11-07-2026 Zero error of the instrument is _______? آلے کی زیرو ایرر کس قسم کی غلطی ہے؟ Systematic error Human error Random error Classified error اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Zero error is a Systematic error because it causes a consistent error in every measurement. It occurs when an instrument does not read zero even when no quantity is being measured. The same error is repeated in all readings unless corrected. Zero error may be positive or negative . It can be corrected by applying a zero correction . Last verified on 06-07-2026 The only source of energy on earth is ____? زمین پر توانائی کا واحد ذریعہ کون سا ہے؟ Moon Star Water Sun اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The Sun is the ultimate and main source of energy on Earth. It provides energy through solar radiation (light and heat). All forms of energy on Earth directly or indirectly come from the Sun . It supports life, climate, and ecosystems on Earth. This energy is then converted into various forms, such as : Thermal energy (heat) Kinetic energy (wind, water currents) Electrical energy (generated from solar panels) Chemical energy (fossil fuels, biomass) Biological energy (food chains, ecosystems) Last verified on 16-06-2026 The density of gases increases when its? گیسوں کی کثافت میں اضافہ کب ہوتا ہے؟ Pressure increased Temperature increased Volume increased None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The density of gases increases when pressure is increased because gas molecules come closer together . Density is the mass per unit volume of a substance. When pressure increases, the volume of gas decreases (at constant temperature), causing density to increase . This relationship follows Boyle's Law. Last verified on 21-06-2026 Movement of water molecules from the area of higher water potential to the area of lower water potential called? پانی کے مالیکیولز کا زیادہ واٹر پوٹینشل سے کم واٹر پوٹینشل کی طرف حرکت کرنا کیا کہلاتا ہے؟ Diffusion Osmosis Active transport Water potential اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The movement of water from higher water potential to lower water potential is called osmosis . It occurs through a semi-permeable membrane. Only water molecules move in osmosis. It is a passive process (no energy required). Last verified on 18-06-2026
2012
The planet of the solar system which has maximum numbers of Moon/Satellites?
Correct Option
Option C
Explanation
Saturn is the second-largest planet in the solar system. Ganymede (Moon of Jupiter ) is the largest satellite in the solar system. Planets and Natural Satellites : Mercury : 0 Venus: 0 Earth : 1 (Moon) Mars: 2 (Deimos, Phobos) Jupiter : 95 Saturn: 274 Uranus : 27 Last verified on 02-05-2026 Related MCQs A series of steps of a stair is called? نانک شاہی کیلنڈر کا پہلا مہینہ کون سا ہے؟ Landing Tread Flight Riser اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A series of steps is called a staircase, stairway, or a flight of stairs Additional information: Tread: The flat, horizontal top surface where you place your foot. Riser: The vertical part that forms the gap between one step and the next . Nosing: The front, rounded edge of the tread that sticks out over the riser Last updated 14 August 2026 by NA The light from the Sun reaches to earth is about? سورج کی روشنی زمین تک پہنچنے میں کتنا وقت لیتی ہے؟ 5 min 20 sec 6 min 20 sec 7 min 20 sec 8 min 20 sec اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Sunlight travels at the speed of light (~3 × 10⁸ m/s). Takes 8 minutes 20 seconds on average to reach Earth. Sunlight takes approximately 499 seconds to travel from the Sun to Earth . Distance traveled: 150 million km from Sun to Earth. Moonlight takes only 1.3 seconds to reach Earth. Last verified on 13-03-2026 Which planet is known as Morning and Evening Star? کون سا سیارہ صبح اور شام کا ستارہ کہلاتا ہے؟ Mercury Venus Jupiter None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Venus is called the Morning Star and Evening Star . It is the second closest planet to the Sun . It is the brightest planet and the hottest planet in the Solar System. It has no natural moon (satellite). It is also known as the " Black Planet ". Last verified on 21-07-2026 The planet of the solar system which has maximum numbers of Moon/Satellites? نظام شمسی کا وہ سیارہ جس میں زیادہ سے زیادہ چاند/سیارے ہیں؟ Jupiter Venus Saturn Uranus اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Saturn is the second-largest planet in the solar system. Ganymede (Moon of Jupiter ) is the largest satellite in the solar system. Planets and Natural Satellites : Mercury : 0 Venus: 0 Earth : 1 (Moon) Mars: 2 (Deimos, Phobos) Jupiter : 95 Saturn: 274 Uranus : 27 Last verified on 02-05-2026 The age of Universe is ____? کائنات کی عمر کتنی ہے؟ 100 million years 1 million year 13.8 billion years None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The age of the Universe is approximately 13.8 billion years . Additional information : Age of the Earth : ≈ 4.54 billion years Age of the Solar System : ≈ 4.6 billion years Age of the Milky Way : ≈ 13.6 billion years Big Bang : Occurred about 13.8 billion years ago Last verified on 20-07-2026
2013
He is blind ______ one eye.
Correct Option
Option A
Explanation
The correct expression is " blind in one eye ." Use in to describe blindness affecting a particular eye. Correct sentence: "He is blind in one eye." Examples : The old man is blind in one eye. The boy is blind in one eye. Last verified on 19-07-2026 Related MCQs He is married ____ my sister. To With Of None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Correct sentence: He is married to my sister. We use " married to " when describing a person's marital relationship . Last verified on 09-08-2026 We received them ________ airport. At In On None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The correct sentence is: "We received them at the airport." At is used for a specific place or location , such as an airport, station, or bus stop . Last verified on 04-08-2026 Company is concerned ______ the well-being of its employees. About With On None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Sentence: The company is concerned about the well-being of its employees. We use " concerned about " when we mean worried, anxious, or caring about someone's welfare . We use " concerned with " when we mean involved in, dealing with, or busy with a specific topic or business . Additional information : Concerned about means worried about something. Last verified on 27-07-2026 A match was called ____ because the ground was wet. On Off Up None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The phrasal verb called off means cancelled . A match is called off when it cannot be played , for example, because the ground is wet . Last verified on 20-07-2026 What is up ___ them? At With On By اس سوال کو وضاحت کے ساتھ پڑھیں Explanation What is up with them? ان کے ساتھ کیا مسئلہ ہے؟ The preposition "with" is used here Because it indicates the subject of concern or relation It connects the state or situation ("what is up") to the person or thing involved ("them"). Last updated 24-07-2026 by NA
2014
The Synonym of Capricious is?
Correct Option
Option D
Explanation
Capricious means مظہر، موجی Unpredictable means غیر متوقع Impetuous means پرجوش Last verified on 19-07-2026 Related MCQs Choose the word most similar EXPRESS? Hide Describe Secret None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Express and Describe means بیان کرنا Last verified on 22-08-2026 The Synonym of Trial is? Test Success Reward None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Trial means an attempt, test, or examination . Trial means ایک کوشش، امتحان، یا امتحان Test means ایک کوشش، امتحان، یا امتحان Last verified on 10-08-2026 The Synonym of Diligence is? Hard work Carelessness Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Diligence means careful and persistent effort . Diligence means محتاط اور مسلسل کوشش Hard work means محنت Last verified on 10-08-2026 The Synonym of Quarantine is? Isolation Emergency Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Quarantine means علیحدگی Isolation means علیحدگی Last verified on 08-08-2026 The Synonym of Modify is? Change Subscribe Bring together None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Modify means تبدیلی Change means تبدیلی Last verified on 08-08-2026
2015
What is extension of MS PowerPoint presentation of file in 2007 and later?
Correct Option
Option C
Explanation
.pptx → Default PowerPoint Presentation (2007 and later) ppt → PowerPoint Presentation ( 97 - 2003 ) Additional information: .ppsx → PowerPoint Show (opens directly as a slideshow) .potx → PowerPoint Template .pptm → Macro-enabled Presentation Last verified on 11-07-2026 Related MCQs MS PowerPoint is used for _______? ایم ایس پاورپوائنٹ کس کے لیے استعمال ہوتا ہے؟ Presentation Drafting Worksheet None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation PowerPoint is used for Create presentations from scratch or a template. Add text, images, art, and videos . Select a professional design with PowerPoint Designer . Last verified on 03-04-2026 What is the purpose of the Slide Sorter view in PowerPoint? پاورپوائنٹ میں سلائیڈ سارٹر ویو کا مقصد کیا ہے؟ Rearrange slides in a presentation To apply formatting to all slides in a presentation Add animations to slides None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Slide Sorter View main purpose is to rearrange, move, copy, delete, or organize slides easily. Its in PowerPoint displays all slides as small thumbnails on one screen. It is especially useful for checking the overall sequence and structure of a presentation . It can also help manage slide transitions across multiple slides. Last verified on 09-08-2026 Which command will you use in PowerPoint if you need to change the color of different objects without changing content? اگر آپ کو مواد کو تبدیل کیے بغیر مختلف اشیاء کا رنگ تبدیل کرنے کی ضرورت ہو تو آپ پاور پوائنٹ میں کون سی کمانڈ استعمال کریں گے؟ Design template Color scheme Object color Font color اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Color Scheme is used to change the colors of different objects without changing their content. It provides a coordinated set of colors for presentation elements. Additional information: Design Template changes the overall design and appearance of slides. Object Color changes the color of a specific selected object. Font Color changes only the color of text. Last verified on 09-08-2026 In Microsoft PowerPoint, which tab is used to display all slides during a presentation? مائیکروسافٹ پاورپوائنٹ میں پریزنٹیشن کے دوران تمام سلائیڈز دکھانے کے لیے کون سا ٹیب استعمال ہوتا ہے؟ Slide Show Insert Design None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The Slide Show tab is used to display all slides during a PowerPoint presentation . It starts the presentation in full-screen mode. You can begin the slideshow from the first slide or the current slide . Additional information : F5 starts the slideshow from the first slide . Shift + F5 starts the slideshow from the current slide . Last verified on 09-08-2026 Through which tab can an object be animated in MS PowerPoint? ایم ایس پاورپوائنٹ میں کسی آبجیکٹ کو متحرک (اینیمیٹ) کرنے کے لیے کون سا ٹیب استعمال کیا جاتا ہے؟ Animations Insert Design None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Animations tab is used to apply animation effects to objects in MS PowerPoint. It allows effects such as Entrance, Emphasis, Exit, and Motion Paths . The Animations tab also provides options to control the timing and order of effects . Additional information : Insert tab is used to add objects such as pictures, tables, shapes, and charts. Design tab is mainly used for themes, colors, fonts, and slide background. Last verified on 09-08-2026
2016
Injeel was revealed on which Prophet by Allah?
Correct Option
Option C
Explanation
Injeel is the holy book revealed by Allah to Hazrat Isa ( A.S) . Meaning: " Good News "; also called Gospel (means Truth ) It was revealed in Hebrew . Additional information : Tawrat : Revealed to Hazrat Musa (A.S) Zabur : Revealed to Hazrat Dawud (A.S) Quran : Revealed to Prophet Muhammad (PBUH) Last verified on 14-03-2026 Related MCQs Zaboor was revealed on which Prophet? زبور کس نبیؑ پر نازل ہوئی؟ Hazrat Mossa (a.s) Hazrat Issa (a.s) Hazrat Dawood (a.s) Hazrat Muhammad (a.s) اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Zaboor ( Psalms ) was revealed to Hazrat Dawood (AS). Zaboor was revealed in the Syriac language . Zaboor mainly contains praises of Allah, supplications, and guidance . Additional information : Tawrat (Torah) → Hazrat Moosa (AS) Injeel (Gospel) → Hazrat Isa (AS) Holy Qur'an → Prophet Muhammad (ﷺ) Last verified on 22-07-2026 How many verses of Surah Al-Alaq were first revealed to the Holy Prophet (PBUH) in the first Wahi (revelation)? پہلی وحی میں سورۃ العلق کی کتنی آیات نبی کریم ﷺ پر نازل ہوئیں؟ Four Seven Six Five اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Number of verses: 5 Surah: Al-Alaq (96th Surah) Location of the first wahi : Cave Hira (Ghar-e-Hira), Makkah Angel: Jibril (A.S.) First Word Revealed: Iqra (Read) In: 610 AD Additional information : At the Age of 40 years 6 months Prescriber of wahi in Makkah: Sharjeel-ibn-Hasana Kandi First writer of Wahi in Quraish : Hazrat Zaid bin Sabit (RA) Last verified on 27-04-2026 Torah is the holy book of which Religion? تورات کس مذہب کی مقدس کتاب ہے؟ Jews Judaism Zoroastrians Both A & B اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Religion: Judaism Followers: Jews Books in the Torah: 5 (Pentateuch) Revealed to: Prophet Musa (Moses, A.S.) Revealed at: Mount Sinai (over 3,000 years ago, according to Jewish tradition ) Last verified on 21-07-2026 Injeel was revealed on which Prophet by Allah? انجیل اللہ کی طرف سے کس نبی پر نازل ہوئی؟ Hazrat Moosa Hazrat Ibrahim Hazrat Isa None of the above اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Injeel is the holy book revealed by Allah to Hazrat Isa ( A.S) . Meaning: " Good News "; also called Gospel (means Truth ) It was revealed in Hebrew . Additional information : Tawrat : Revealed to Hazrat Musa (A.S) Zabur : Revealed to Hazrat Dawud (A.S) Quran : Revealed to Prophet Muhammad (PBUH) Last verified on 14-03-2026 Which Holy Book is called the Old Testament? کون سی آسمانی کتاب کو اولڈ ٹیسٹمینٹ کہا جاتا ہے؟ The Zuboor The Torait (Bible) The Injeel The Quran اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Torait (Tawrat) is known as the Old Testament in the Bible . It was revealed to Prophet Musa (Moses A.S.). It contains laws and teachings given to the Israelites . Additional information : Zabur → Revealed to Prophet Dawood (A.S.) Injeel → Revealed to Prophet Isa (A.S.) Qur'an → Revealed to Prophet Muhammad (ﷺ) Last verified on 02-04-2026
2017
Sound cannot travel through ______?
Correct Option
Option D
Explanation
Sound cannot travel through a vacuum because there are no particles to carry sound vibrations. Sound needs a medium such as a solid, liquid, or gas to travel . Since space is nearly a vacuum , sound cannot be heard there. The speed of sound in a vacuum is 0 m/s . Additional information : Infrasound: Below 20 Hz Audible sound: 20 Hz - 20,000 Hz (20 kHz) Ultrasound: Above 20 kHz Speed of sound in air: 343 m/s Speed of sound in water: 1,481 m/s Last verified on 07-06-2026 Related MCQs A series of steps of a stair is called? نانک شاہی کیلنڈر کا پہلا مہینہ کون سا ہے؟ Landing Tread Flight Riser اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A series of steps is called a staircase, stairway, or a flight of stairs Additional information: Tread: The flat, horizontal top surface where you place your foot. Riser: The vertical part that forms the gap between one step and the next . Nosing: The front, rounded edge of the tread that sticks out over the riser Last updated 14 August 2026 by NA Ozone is present in which layer of atmosphere? اوزون فضا کی کس تہہ میں موجود ہے؟ Biosphere Thermosphere Troposphere Stratosphere اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Ozone (O₃) is mainly found in the Stratosphere , called the ozone layer . It absorbs harmful ultraviolet (UV) radiation from the sun, protecting life on Earth . Located roughly 15 - 35 km above the Earth's surface. Last verified on 17-01-2026 Rainbow is produced due to _______ of lights. قوسِ قزح روشنی کے _______ کی وجہ سے بنتی ہے۔ Dispersion Diffraction Reflection Refraction اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A rainbow is produced due to the dispersion of sunlight by water droplets in the atmosphere. White sunlight splits into seven colours when it passes through raindrops. The formation of a rainbow involves refraction, dispersion, and internal reflection . Dispersion is the phenomenon responsible for separating white light into its constituent colours . Rainbows are usually seen opposite the Sun after rainfall . Last verified on 26-07-2026 The most abundant component in Earth's atmosphere (Air) is? زمین کے ماحول (ہوا) میں سب سے زیادہ پرچر جز ہے؟ Hydrogen Oxygen Nitrogen Carbon dioxide اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Nitrogen (N₂): 78% Additional information : Oxygen (O₂): 21% Argon (Ar): 0.93% Carbon dioxide (CO₂): ~0.04% Other gases : ~0.03% Last verified on 16-05-2026 Sound cannot travel through ______? آواز کس کے ذریعے سفر نہیں کر سکتی؟ Solid Liquid Gases Vacuum اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Sound cannot travel through a vacuum because there are no particles to carry sound vibrations. Sound needs a medium such as a solid, liquid, or gas to travel . Since space is nearly a vacuum , sound cannot be heard there. The speed of sound in a vacuum is 0 m/s . Additional information : Infrasound: Below 20 Hz Audible sound: 20 Hz - 20,000 Hz (20 kHz) Ultrasound: Above 20 kHz Speed of sound in air: 343 m/s Speed of sound in water: 1,481 m/s Last verified on 07-06-2026
2018
The Synonym of Imperceptible is?
Correct Option
Option D
Explanation
Imperceptible means پوشیدہ Subtle means پیچیدہ Last verified on 20-06-2026 Related MCQs Choose the word most similar EXPRESS? Hide Describe Secret None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Express and Describe means بیان کرنا Last verified on 22-08-2026 The Synonym of Trial is? Test Success Reward None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Trial means an attempt, test, or examination . Trial means ایک کوشش، امتحان، یا امتحان Test means ایک کوشش، امتحان، یا امتحان Last verified on 10-08-2026 The Synonym of Diligence is? Hard work Carelessness Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Diligence means careful and persistent effort . Diligence means محتاط اور مسلسل کوشش Hard work means محنت Last verified on 10-08-2026 The Synonym of Quarantine is? Isolation Emergency Negligence None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Quarantine means علیحدگی Isolation means علیحدگی Last verified on 08-08-2026 The Synonym of Modify is? Change Subscribe Bring together None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Modify means تبدیلی Change means تبدیلی Last verified on 08-08-2026
2019
What is/are the main cause/s of earthquakes?
Correct Option
Option D
Explanation
Tectonic Plates Movement (Most Common): The Earth's crust is broken into large tectonic plates that constantly shift. Volcanic Activities: Movement of magma beneath volcanoes can cause shifts and trigger earthquakes. Tectonic Dislocation (Faults): This refers to the actual fractures (faults) in the crust where plates slide past each other, which is the direct mechanism for most plate-related earthquakes. Other Causes: Human activities (mining, large reservoirs) and even large collapses of rock can also cause minor seismic events. Related MCQs A series of steps of a stair is called? نانک شاہی کیلنڈر کا پہلا مہینہ کون سا ہے؟ Landing Tread Flight Riser اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A series of steps is called a staircase, stairway, or a flight of stairs Additional information: Tread: The flat, horizontal top surface where you place your foot. Riser: The vertical part that forms the gap between one step and the next . Nosing: The front, rounded edge of the tread that sticks out over the riser Last updated 14 August 2026 by NA The light from the Sun reaches to earth is about? سورج کی روشنی زمین تک پہنچنے میں کتنا وقت لیتی ہے؟ 5 min 20 sec 6 min 20 sec 7 min 20 sec 8 min 20 sec اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Sunlight travels at the speed of light (~3 × 10⁸ m/s). Takes 8 minutes 20 seconds on average to reach Earth. Sunlight takes approximately 499 seconds to travel from the Sun to Earth . Distance traveled: 150 million km from Sun to Earth. Moonlight takes only 1.3 seconds to reach Earth. Last verified on 13-03-2026 Which planet is known as Morning and Evening Star? کون سا سیارہ صبح اور شام کا ستارہ کہلاتا ہے؟ Mercury Venus Jupiter None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Venus is called the Morning Star and Evening Star . It is the second closest planet to the Sun . It is the brightest planet and the hottest planet in the Solar System. It has no natural moon (satellite). It is also known as the " Black Planet ". Last verified on 21-07-2026 The planet of the solar system which has maximum numbers of Moon/Satellites? نظام شمسی کا وہ سیارہ جس میں زیادہ سے زیادہ چاند/سیارے ہیں؟ Jupiter Venus Saturn Uranus اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Saturn is the second-largest planet in the solar system. Ganymede (Moon of Jupiter ) is the largest satellite in the solar system. Planets and Natural Satellites : Mercury : 0 Venus: 0 Earth : 1 (Moon) Mars: 2 (Deimos, Phobos) Jupiter : 95 Saturn: 274 Uranus : 27 Last verified on 02-05-2026 The age of Universe is ____? کائنات کی عمر کتنی ہے؟ 100 million years 1 million year 13.8 billion years None of these اس سوال کو وضاحت کے ساتھ پڑھیں Explanation The age of the Universe is approximately 13.8 billion years . Additional information : Age of the Earth : ≈ 4.54 billion years Age of the Solar System : ≈ 4.6 billion years Age of the Milky Way : ≈ 13.6 billion years Big Bang : Occurred about 13.8 billion years ago Last verified on 20-07-2026
2020
Age of the tree can be determined by _____?
Correct Option
Option C
Explanation
The age of a tree is determined by counting its growth rings. They are visible in the cross-section of the stem. Each ring represents one year of growth. Related MCQs A series of steps of a stair is called? نانک شاہی کیلنڈر کا پہلا مہینہ کون سا ہے؟ Landing Tread Flight Riser اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A series of steps is called a staircase, stairway, or a flight of stairs Additional information: Tread: The flat, horizontal top surface where you place your foot. Riser: The vertical part that forms the gap between one step and the next . Nosing: The front, rounded edge of the tread that sticks out over the riser Last updated 14 August 2026 by NA Ozone is present in which layer of atmosphere? اوزون فضا کی کس تہہ میں موجود ہے؟ Biosphere Thermosphere Troposphere Stratosphere اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Ozone (O₃) is mainly found in the Stratosphere , called the ozone layer . It absorbs harmful ultraviolet (UV) radiation from the sun, protecting life on Earth . Located roughly 15 - 35 km above the Earth's surface. Last verified on 17-01-2026 Rainbow is produced due to _______ of lights. قوسِ قزح روشنی کے _______ کی وجہ سے بنتی ہے۔ Dispersion Diffraction Reflection Refraction اس سوال کو وضاحت کے ساتھ پڑھیں Explanation A rainbow is produced due to the dispersion of sunlight by water droplets in the atmosphere. White sunlight splits into seven colours when it passes through raindrops. The formation of a rainbow involves refraction, dispersion, and internal reflection . Dispersion is the phenomenon responsible for separating white light into its constituent colours . Rainbows are usually seen opposite the Sun after rainfall . Last verified on 26-07-2026 The most abundant component in Earth's atmosphere (Air) is? زمین کے ماحول (ہوا) میں سب سے زیادہ پرچر جز ہے؟ Hydrogen Oxygen Nitrogen Carbon dioxide اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Nitrogen (N₂): 78% Additional information : Oxygen (O₂): 21% Argon (Ar): 0.93% Carbon dioxide (CO₂): ~0.04% Other gases : ~0.03% Last verified on 16-05-2026 Sound cannot travel through ______? آواز کس کے ذریعے سفر نہیں کر سکتی؟ Solid Liquid Gases Vacuum اس سوال کو وضاحت کے ساتھ پڑھیں Explanation Sound cannot travel through a vacuum because there are no particles to carry sound vibrations. Sound needs a medium such as a solid, liquid, or gas to travel . Since space is nearly a vacuum , sound cannot be heard there. The speed of sound in a vacuum is 0 m/s . Additional information : Infrasound: Below 20 Hz Audible sound: 20 Hz - 20,000 Hz (20 kHz) Ultrasound: Above 20 kHz Speed of sound in air: 343 m/s Speed of sound in water: 1,481 m/s Last verified on 07-06-2026