Which statement shows that the troposphere contains the greatest mass?
Answer and explanation
Correct answer: Most air is concentrated near the surface due to gravity
The governing concept is gravitational stratification of the atmosphere. Gravity pulls atmospheric molecules toward Earth, so air pressure and density are greatest near the surface and decrease with altitude. Since the troposphere is the lowest major layer, it contains the largest share of atmospheric mass. Thus option A is correct; the exosphere is extremely thin, and pressure is not highest in the stratosphere.
Frequently asked questions
What is the correct answer to this question?
Most air is concentrated near the surface due to gravity
Why is this the correct answer?
The governing concept is gravitational stratification of the atmosphere. Gravity pulls atmospheric molecules toward Earth, so air pressure and density are greatest near the surface and decrease with altitude. Since the troposphere is the lowest major layer, it contains the largest share of atmospheric mass. Thus option A is correct; the exosphere is extremely thin, and pressure is not highest in the stratosphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement.
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