Why is the tropopause generally found at a lower altitude in polar regions?
Answer and explanation
Correct answer: Because the air is colder and convection is weaker
Polar regions receive less solar heating, so their lower atmosphere is colder and vertical convection is weaker than in the tropics. The troposphere therefore has less vertical expansion, placing the tropopause at a lower altitude. Option A is correct. Volcanoes, ozone absence, and sea salt are not the general atmospheric reasons for the polar height of the tropopause.
Frequently asked questions
What is the correct answer to this question?
Because the air is colder and convection is weaker
Why is this the correct answer?
Polar regions receive less solar heating, so their lower atmosphere is colder and vertical convection is weaker than in the tropics. The troposphere therefore has less vertical expansion, placing the tropopause at a lower altitude. Option A is correct. Volcanoes, ozone absence, and sea salt are not the general atmospheric reasons for the polar height of the tropopause.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
