Prelims Test Series 2025 HISTORY OPTIONAL COURSES
Office: 011-45090051, 9818333201

INSIGHT UPSC QUIZ

Select Your Subject

GS Geography Physical Geography of World
Q.

Which is the warmest layer of the atmosphere?
Explanation:

ANS. (A) 
The thermosphere is the hottest layer of the atmosphere. It extends from 80 kilometres above the surface of the Earth up to 600 kilometres and can heat up to 1,500 degrees Celsius because it’s very sensitive to solar activity. The air is thin and extremely hot, and there are sparse air molecules in this layer.

More Questions Selected Just For You. Attempt Now!

Select Your Subject