What is the main basis for considering the exosphere the outermost atmospheric layer?
Answer and explanation
Correct answer: It gradually merges into space
Option B is correct because the exosphere is the highest, extremely rarefied part of Earth’s atmosphere. Its particles are so widely separated that there is no sharp upper surface; the gas gradually becomes indistinguishable from the surrounding space. Light hydrogen and helium atoms can also travel long distances there. The troposphere, not the exosphere, produces most weather, clouds, and rainfall. Therefore A, C, and D conflict with the defining position and physical nature of the exosphere.
Frequently asked questions
What is the correct answer to this question?
It gradually merges into space
Why is this the correct answer?
Option B is correct because the exosphere is the highest, extremely rarefied part of Earth’s atmosphere. Its particles are so widely separated that there is no sharp upper surface; the gas gradually becomes indistinguishable from the surrounding space. Light hydrogen and helium atoms can also travel long distances there. The troposphere, not the exosphere, produces most weather, clouds, and rainfall. Therefore A, C, and D conflict with the defining position and physical nature of the exosphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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