Which light gases are commonly found in the exosphere?
Answer and explanation
Correct answer: Hydrogen and helium
The exosphere is the highest, extremely thin atmospheric region, where particles are widely separated. Because lighter atoms can reach and remain in this outer region more readily, hydrogen and helium are commonly associated with it. Therefore, option A is correct. Nitrogen and oxygen dominate the lower atmosphere, while carbon dioxide, water vapour, chlorine and sulphur are not the characteristic pair here.
Frequently asked questions
What is the correct answer to this question?
Hydrogen and helium
Why is this the correct answer?
The exosphere is the highest, extremely thin atmospheric region, where particles are widely separated. Because lighter atoms can reach and remain in this outer region more readily, hydrogen and helium are commonly associated with it. Therefore, option A is correct. Nitrogen and oxygen dominate the lower atmosphere, while carbon dioxide, water vapour, chlorine and sulphur are not the characteristic pair here.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
