LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in GK by (30.0k points)
closed by
The composition of gases in exosphere is
1. Helium and Hydrogen.
2. Neon and Oxygen.
3. Neon and Hydrogen.
4. Helium and Neon.

1 Answer

0 votes
by (54.3k points)
selected by
Best answer
Correct Answer - Option 1 : Helium and Hydrogen.

The correct answer is Helium and Hydrogen.

  • The exosphere is the outermost layer of the atmosphere.
  • It starts above the ionosphere at a height of 400 km and stretches up to 10,000 km
  • Light gases like helium and hydrogen float into space from here.
  • The temperature in this layer gradually increases through the layer as the sunlight invades it.

  • Gases in various layers of the atmosphere:
    • Troposphere - Nitrogen (78.08%), oxygen (20.95% ), argon (0.93% ), carbon dioxide (0.04%), methane, dinitrogenoxide, carbon monoxide, ozone, sulphate, nitrogen dioxide, and hydroxyl radical.
    • Stratosphere - Nitrogen, oxygen, argon, and trace elements like neon and helium.
    • Mesosphere -  Nitrogen, oxygen, and ozone. 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.