Why is the troposphere relatively lower over the poles?
Answer and explanation
Correct answer: Because temperature is lower and convection is weak there
The polar troposphere is relatively shallow because the surface and lower atmosphere receive less solar heating. Colder air expands less, and weaker convection produces less vertical extension than in the tropics. Consequently, the tropopause is lower over the poles, making option A correct. Ozone is present in several regions, gravity is not absent at the poles, and meteor entry is unrelated to the normal height of the troposphere.
Frequently asked questions
What is the correct answer to this question?
Because temperature is lower and convection is weak there
Why is this the correct answer?
The polar troposphere is relatively shallow because the surface and lower atmosphere receive less solar heating. Colder air expands less, and weaker convection produces less vertical extension than in the tropics. Consequently, the tropopause is lower over the poles, making option A correct. Ozone is present in several regions, gravity is not absent at the poles, and meteor entry is unrelated to the normal height of the troposphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement. Topic: Reconciling cash book and passbook differences.
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