| 1. The Earth has a rotational motion and the rotational speed increases as one goes from the poles towards the equator. |
| 2. The equator experiences greater gravitational pull from the sun. |
| 3. The intensity of sunlight received at the equator is greater than that at the poles. |
A) Only 1
B) 1 and 2
C) Only 3
D) All of these
Correct Answer: A
Solution :
The shape of the Earth is very close to that of an oblate spheroid, a sphere flattered along the axis from pole to pole such that there is bulge around equator. This bulge results from the rotation of the Earth and causes the diameter at the equator to be 43 km large than the pole to pole diameter.
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