Question

Which of the following phenomena causes the shape of the Earth ?

• A. Internal structure
• B. Atmospheric pressure
• C. Rotation
• D. Revolution

Answer 1

The correct option is C Rotation

• The shape of the Earth is classified as an ellipsoid or an oblate spheroid.
• The Earth is not considered a true sphere because it has a larger circumference and diameter at the equator.
• The poles of the Earth are squished, which creates a slight bulge around the equator.
• The Earth's polar diameter is about 43 kilometers shorter than its equatorial diameter, a difference of about 0.3%.
• This is due to the equatorial bulge caused by the Earth's rotation.