General Knowledge MCQs
Topic Notes: General Knowledge
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
11
What is the Great Lake entirely within the USA, affected by 2025 algal blooms?
Answer:
Lake Michigan
Lake Michigan, covering 58,000 km² in the USA, was studied in 2025 for climate-driven algal blooms, as per a web source. Superior and Huron are binational, Erie has different issues, making Lake Michigan the correct choice.
12
Which Great Lake, studied for ancient hunting camps in 2025, borders Michigan and Ontario?
Answer:
Lake Huron
Lake Huron, in the USA and Canada, covers 59,600 km² and had ancient hunting camps discovered beneath it, with 2025 DNA studies, as per a web source. Superior, Erie, and Ontario lack this finding, making Lake Huron the correct choice.
13
Which African lake is the continent’s largest, named after a British queen?
Answer:
Lake Victoria
Lake Victoria, spanning Uganda, Kenya, and Tanzania, is Africa’s largest lake (68,800 km²), named after Queen Victoria, as noted in an X post. Tanganyika and Malawi are deeper, Chad is smaller, making Lake Victoria the correct choice.
14
What is the largest of the Great Lakes, studied in 2025 for ancient basin formation?
Answer:
Lake Superior
Lake Superior, in the USA and Canada, is the largest Great Lake by area (82,100 km²), with 2025 studies suggesting its basin formed millions of years ago, as per a web source. Huron, Michigan, and Erie are smaller, making Lake Superior the correct choice.
15
Which Siberian lake is the world’s deepest and oldest, holding 20% of global freshwater?
Answer:
Lake Baikal
Lake Baikal, in Russia, is the world’s deepest (1,642 m) and oldest (25 million years) lake, holding 20% of global freshwater, as noted in web sources. Lake Vostok is subglacial, Ladoga and Onega are shallower, making Lake Baikal the correct choice.
16
Which lake is the smallest by surface area among the top ten?
Answer:
Great Slave Lake
Great Slave Lake is the smallest by surface area among the top ten lakes, at 11,030 square miles, slightly less than Lake Malawi or Great Bear Lake.
17
Which lake is located in both the USA and Canada?
Answer:
Lake Superior
Lake Superior is located in both the USA and Canada, unlike Lake Michigan (USA only), Great Bear Lake (Canada only), or Lake Malawi (Africa).
18
Which lake is the longest among the top ten?
Answer:
Lake Tanganyika
Lake Tanganyika is the longest lake among the top ten, at 420 miles, longer than Lake Malawi (363 miles), Great Slave Lake (300 miles), or Lake Victoria.
19
Which lake is known for being the deepest freshwater lake by volume?
Answer:
Lake Baikal
Lake Baikal is the deepest freshwater lake by volume, holding the most water due to its 5,387-foot depth, unlike Lake Tanganyika or Lake Superior.
20
Which lake has the highest surface elevation among the top ten?
Answer:
Lake Victoria
Lake Victoria has the highest surface elevation among the top ten lakes, at 3,720 feet above sea level, higher than Lake Tanganyika, Lake Malawi, or Lake Baikal.