Why is the exosphere not considered a layer with a sharp upper boundary?
Answer and explanation
Correct answer: It gradually merges into space
The governing concept is the gradual transition from the outer atmosphere to interplanetary space. In the exosphere, gas particles are extremely sparse and can travel long distances, so atmospheric density decreases progressively rather than ending at a sharply defined top. It is therefore better described as fading into space. The exosphere is not near Earth’s surface, filled with rainfall, or composed only of ozone; hence option A is correct.
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What is the correct answer to this question?
It gradually merges into space
Why is this the correct answer?
The governing concept is the gradual transition from the outer atmosphere to interplanetary space. In the exosphere, gas particles are extremely sparse and can travel long distances, so atmospheric density decreases progressively rather than ending at a sharply defined top. It is therefore better described as fading into space. The exosphere is not near Earth’s surface, filled with rainfall, or composed only of ozone; hence option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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