Why is the exosphere called a transition region rather than a layer with a clear upper boundary?
Answer and explanation
Correct answer: Because it gradually merges into space
The governing concept is the gradual thinning of the outer atmosphere. In the exosphere, gas particles are extremely far apart, collisions are rare, and the atmosphere does not end at a sharp physical surface. Particles can travel on long paths and some gradually escape into interplanetary space, so the exosphere merges progressively with space. Maximum rainfall, a position below sea level, and restriction to the poles are all inconsistent with its location and properties. Thus option A is correct.
Frequently asked questions
What is the correct answer to this question?
Because it gradually merges into space
Why is this the correct answer?
The governing concept is the gradual thinning of the outer atmosphere. In the exosphere, gas particles are extremely far apart, collisions are rare, and the atmosphere does not end at a sharp physical surface. Particles can travel on long paths and some gradually escape into interplanetary space, so the exosphere merges progressively with space. Maximum rainfall, a position below sea level, and restriction to the poles are all inconsistent with its location and properties. Thus option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
