Question

Assertion (A): A bulge in the middle portion of the earth and flattened top at the poles.

Reason (R): Centrifugal force always directed outward, i.e., away from the axis of rotation.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R does not explain A.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is the correct explanation of A.

Explanation:

• Assertion (A) is true: The Earth has a bulge at the equator and is flattened at the poles. This shape is due to the Earth's rotation, which causes a centrifugal force that pushes material outward at the equator, resulting in the Earth's oblate spheroid shape.
• Reason (R) is also true: The centrifugal force is directed outward, away from the axis of rotation, and this force is responsible for the bulging at the equator and the flattening at the poles.