What is the main reason the tropopause is found at lower height near the poles?
Answer and explanation
Correct answer: Lower heating and weaker convection
The governing concept is the latitudinal variation in tropospheric heating and convection. The tropics receive stronger solar heating, causing vigorous convection and a deeper, higher troposphere. Near the poles, heating is weaker, air rises less strongly and the troposphere is thinner; consequently, the tropopause occurs at a lower altitude. Thus option B is correct, while salinity, absent ozone and exosphere pressure are unsuitable explanations.
Frequently asked questions
What is the correct answer to this question?
Lower heating and weaker convection
Why is this the correct answer?
The governing concept is the latitudinal variation in tropospheric heating and convection. The tropics receive stronger solar heating, causing vigorous convection and a deeper, higher troposphere. Near the poles, heating is weaker, air rises less strongly and the troposphere is thinner; consequently, the tropopause occurs at a lower altitude. Thus option B is correct, while salinity, absent ozone and exosphere pressure are unsuitable explanations.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Incomplete Records.
