In which layer is air density most likely to be highest?
Answer and explanation
Correct answer: Lower troposphere
Gravity pulls atmospheric gases toward Earth, so most air molecules are concentrated near the surface. Consequently, air density and pressure are greatest in the lower troposphere and decrease with altitude. Option A is correct. The mesosphere, thermosphere, and exosphere contain progressively thinner air; high temperature in the thermosphere does not make its overall density greater than near the surface.
Frequently asked questions
What is the correct answer to this question?
Lower troposphere
Why is this the correct answer?
Gravity pulls atmospheric gases toward Earth, so most air molecules are concentrated near the surface. Consequently, air density and pressure are greatest in the lower troposphere and decrease with altitude. Option A is correct. The mesosphere, thermosphere, and exosphere contain progressively thinner air; high temperature in the thermosphere does not make its overall density greater than near the surface.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting. Topic: fundamental assumptions.
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