Question

Assertion (A) : Thickness of the atmosphere is maximum over the Equator. 

Reason (R) : High insolation and strong convection currents occur over the Equator. 

(a) Both A and R are individually true and R is the correct explanation of A 

(b) Both A and R are individually true but R is not the correct explanation of A 

(c) A is true but R is false 

(d) A is false but R is true

Answer 1

(d) The circulation of atmosphere and oceans is funda-mentally caused by the fact that the amount of incoming solar radiation varies from a maximum at the equator to a minimum at the poles. More reflection and absorption of incoming radiation takes place in high latitude because of the greater thickness of atmosphere that must be penetrated. Thickness of the earth is maximum over the pole.