Why are particles like hydrogen and helium considered important in the exosphere?
Answer and explanation
Correct answer: Because light particles can persist in the extremely rare upper region
The exosphere is the outermost, extremely rarefied part of Earth’s atmosphere. Because gravity is weak there and collisions between particles are infrequent, the lightest gases, especially hydrogen and helium, can remain present and may gradually escape into space. They do not form ordinary clouds, constitute the ozone layer, or create soil. Thus option A correctly connects the composition of the exosphere with its very low density and weak gravitational control.
Frequently asked questions
What is the correct answer to this question?
Because light particles can persist in the extremely rare upper region
Why is this the correct answer?
The exosphere is the outermost, extremely rarefied part of Earth’s atmosphere. Because gravity is weak there and collisions between particles are infrequent, the lightest gases, especially hydrogen and helium, can remain present and may gradually escape into space. They do not form ordinary clouds, constitute the ozone layer, or create soil. Thus option A correctly connects the composition of the exosphere with its very low density and weak gravitational control.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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