In which layer is normal cloud formation uncommon but polar stratospheric clouds may appear under special conditions?
Answer and explanation
Correct answer: Stratosphere
The stratosphere contains very little water vapour and is relatively stable, so the ordinary clouds and vigorous weather typical of the troposphere are uncommon there. However, in the extremely cold polar stratosphere, nitric acid and water can condense into polar stratospheric clouds. Thus option A is correct. The troposphere is the normal cloud layer, while the exosphere and near-surface region do not fit the stated special cloud type.
Frequently asked questions
What is the correct answer to this question?
Stratosphere
Why is this the correct answer?
The stratosphere contains very little water vapour and is relatively stable, so the ordinary clouds and vigorous weather typical of the troposphere are uncommon there. However, in the extremely cold polar stratosphere, nitric acid and water can condense into polar stratospheric clouds. Thus option A is correct. The troposphere is the normal cloud layer, while the exosphere and near-surface region do not fit the stated special cloud type.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
