Question

12. Why is the shape of the earth geoid?
(a) It is slightly flattened at the poles
(c) Both (a) and (b)
(b) It is spheroid at the poles
(d) None of these
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Answer 1

Answer:

The geoid is a shape like the surface of the Earth. It is a 3-D geometrical shape like an orange. ... The geoid is the shape that the surface of the oceans would take under the influence of Earth's gravitation and rotation alone, in the absence of other influences such as winds and tides.

Answer 2

(a) it is slightly flattened at the poles