Q. Earth’s atmosphere is an envelope of gases extending to a height of:
Answer: 200 km
Notes: The atmosphere of the Earth is an envelope of gases extending to a height of 200km. It includes troposphere, slratosphere, inonosphere and thermosphere.

This question is part of 40000+ MCQs GKToday PCS Mock Tests Series in GKToday Android app. Question Number: 87 in GKToday PCS Mock Test - 17 in above course in App.