Q. Consider the following statements:

1. The Earth's gravity is stronger at the poles than at the equator.
2. The centrifugal force cancels out gravity negligibly, more so at the equator than at the poles.
3. The poles are closer to the center due to the equatorial bulge, and thus have a stronger gravitational field.

Which of the above statements is/are correct?
Answer: 1, 2 and 3
Notes: All three statements are correct: Earth’s gravity is indeed stronger at the poles due to the shape and rotation of the planet. The centrifugal force from rotation counters gravity more at the equator, reducing its effect. Also, the equatorial bulge makes the polar regions closer to Earth's center, increasing the gravitational effect there.