Where is atmospheric density highest?
Answer and explanation
Correct answer: Near Earth’s surface
Atmospheric density means the amount of air, or number of molecules, in a unit volume. Earth’s gravity pulls air toward the surface, compressing the lower atmosphere and making it densest near ground level. With increasing altitude, air pressure falls and molecules become more widely spaced, so density decreases. Thus option B is correct. The exosphere and regions above the mesopause contain extremely thin air, while “outside space” is not a meaningful atmospheric layer.
Frequently asked questions
What is the correct answer to this question?
Near Earth’s surface
Why is this the correct answer?
Atmospheric density means the amount of air, or number of molecules, in a unit volume. Earth’s gravity pulls air toward the surface, compressing the lower atmosphere and making it densest near ground level. With increasing altitude, air pressure falls and molecules become more widely spaced, so density decreases. Thus option B is correct. The exosphere and regions above the mesopause contain extremely thin air, while “outside space” is not a meaningful atmospheric layer.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting.
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