How do atmospheric layers generally become as we move away from Earth surface?
Answer and explanation
Correct answer: Air becomes rarer and pressure decreases
The governing principle is the decrease of atmospheric pressure with altitude. Gravity keeps most air molecules near Earth, so as height increases, the weight of air above a point becomes smaller and the molecules are more widely spaced. Therefore air becomes thinner and pressure falls, making option A correct. Option B reverses the relationship, while C and D ignore the effect of altitude and gravity.
Frequently asked questions
What is the correct answer to this question?
Air becomes rarer and pressure decreases
Why is this the correct answer?
The governing principle is the decrease of atmospheric pressure with altitude. Gravity keeps most air molecules near Earth, so as height increases, the weight of air above a point becomes smaller and the molecules are more widely spaced. Therefore air becomes thinner and pressure falls, making option A correct. Option B reverses the relationship, while C and D ignore the effect of altitude and gravity.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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