In which lower atmospheric layer are most gases concentrated?
Answer and explanation
Correct answer: Troposphere
The troposphere is the lowest atmospheric layer and lies closest to Earth’s surface, where gravity keeps most of the atmosphere’s mass concentrated. Therefore, air pressure and density are greatest near the surface and decrease upward. The exosphere, thermosphere, and mesosphere are much higher and contain far thinner air, so option A is correct.
Frequently asked questions
What is the correct answer to this question?
Troposphere
Why is this the correct answer?
The troposphere is the lowest atmospheric layer and lies closest to Earth’s surface, where gravity keeps most of the atmosphere’s mass concentrated. Therefore, air pressure and density are greatest near the surface and decrease upward. The exosphere, thermosphere, and mesosphere are much higher and contain far thinner air, so option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting.
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