Assertion (A): The weight of a body decreases with the increase of latitude on earth Reason (R): The earth is not perfect sphere

1. This is an Assertion-Reason question about the weight of a body and latitude. 2. Assertion (A): The weight of a body decreases with the increase of latitude on earth. This is false. Weight depends on acceleration due to gravity (g). Gravity is slightly stronger at the poles (higher latitude) than at the equator (lower latitude) due to the Earth's rotation (centrifugal effect is max at equator, zero at poles) and its oblate shape (poles are closer to the center). Therefore, weight *increases* slightly as latitude increases. 3. Reason (R): The earth is not a perfect sphere. This is true. The Earth is an oblate spheroid, slightly flattened at the poles and bulging at the equator. This means the poles are closer to the center of the Earth than the equator is. 4. Since Assertion (A) is false and Reason (R) is true, the correct option is (D).