Which atmospheric layer gradually merges into outer space?
Answer and explanation
Correct answer: Exosphere
The exosphere is the highest and most diffuse atmospheric layer. Its gas molecules are extremely far apart, and the density decreases progressively with altitude rather than ending at a sharp upper surface. For this reason, the exosphere gradually blends into outer space. The troposphere, stratosphere, and mesosphere are lower, more clearly defined layers. Thus option D is correct.
Frequently asked questions
What is the correct answer to this question?
Exosphere
Why is this the correct answer?
The exosphere is the highest and most diffuse atmospheric layer. Its gas molecules are extremely far apart, and the density decreases progressively with altitude rather than ending at a sharp upper surface. For this reason, the exosphere gradually blends into outer space. The troposphere, stratosphere, and mesosphere are lower, more clearly defined layers. Thus option D is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.