alleryWhy is Earth slightly bulging at the equator?
ABecause of its rotation
BBecause of lunar tides alone
CBecause of volcanoes
DBecause of ice sheets
Answer & Solution
Correct answer: A. Because of its rotation
1. Earth is not a perfect sphere.
2. Its rotation makes it an ellipsoid bulging at the equator, with a diameter 43 km longer there than at the poles.
3. Volcanoes and ice sheets are local features and do not shape the whole planet.
_Source: Wikipedia, Earth, Shape_
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