Assertion The total annual insolation is maximum at the equator and goes on decreasing toward the po...........

World Geography (Easy) World Physical Aspects

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Assertion : The total annual insolation is maximum at the equator and goes on decreasing toward the pole.

Reason : The earth is spherical in shape.

Both A and R are true and R explains A

Both A are R are true and R does not explain A

A is true and R is false

R is true and A is false

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Explanation:

Both A and R are true and R explains A

Amount of insolation increase as we move towards equator as the sun rays fall vertically at the equator and so areas near equator receive more rays in a unit area compared to the areas near poles.
Since the earth is a geoid resembling a sphere, the sun’s rays strike the surface at different angles at different places. This depends on the latitude of the place.