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
21
What does the letter 'k' represent in the climate code 'BSk'?
Answer:
Cold (Kalt means cold)
In Köppen B climates, 'h' stands for hot (heiss) and 'k' stands for cold (kalt), usually defined by mean annual temperatures.
22
Which climate zone is commonly found on the western sides of continents between 30° and 45° latitude?
Answer:
Mediterranean
The Mediterranean climate is geographically specific, almost always found on western coasts between 30° and 45° (e.g., California, Central Chile, Cape Town, Perth, Mediterranean Basin).
23
The 'Albedo' of a surface affects climate by:
Answer:
Reflecting solar radiation back into space
Albedo is reflectivity. Ice and snow have high albedo (reflect heat), while dark forests or oceans have low albedo (absorb heat). Losing ice lowers albedo, causing more warming (feedback loop).
24
Why are there no 'Group D' (Continental) climates in the Southern Hemisphere?
Answer:
There is not enough landmass at the appropriate high latitudes
Group D climates require large landmasses to develop extreme seasonal temperature differences (continentality). The Southern Hemisphere is mostly ocean at the mid-to-high latitudes (40°-60°S).
25
Monsoon climates (Am) are best described by:
Answer:
A seasonal reversal of winds causing distinct wet and dry seasons
The Monsoon climate is driven by a seasonal wind reversal. In summer, land heats up, drawing moist ocean air (wet season). In winter, land cools, pushing dry air out (dry season).
26
A climograph displays which two variables?
Answer:
Precipitation and Temperature
A climograph is a graphical representation of a location's basic climate, showing monthly average temperature (line graph) and monthly average precipitation (bar chart).
27
Which of the following places has an 'Ice Cap' climate (EF)?
Answer:
Antarctica
The Ice Cap climate is defined by no month having an average temperature above 0°C. This is found in Antarctica and the interior of Greenland.
28
El Niño usually results in:
Answer:
Drier conditions in Australia and Indonesia
During El Niño, the warm pool of water shifts east toward the Americas, taking the rain with it. This leaves the western Pacific (Australia/Indonesia) prone to drought.
29
Which gas is most responsible for the natural Greenhouse Effect that keeps Earth habitable?
Answer:
Water Vapor
While CO2 is the main driver of *human-caused* warming, Water Vapor is the most abundant natural greenhouse gas and accounts for the largest percentage of the natural greenhouse effect.
30
The 'Urban Heat Island' effect is a microclimatic phenomenon where:
Answer:
Cities are warmer than rural areas due to human activity and materials
Concrete and asphalt absorb heat, and human activities (cars, AC) generate heat, making cities significantly warmer than surrounding vegetative rural areas.