How does the speed of rotation affect the shape of the earth?

The Earth rotates about an imaginary axis that passes two different poles. ... So, the equator experience more angular speed that tries to pull off the part of the Earth from the rotational axis. Hence the equator of the Earth is wider and bulge. The rotation of the Earth about its own axis affects the shape of the Earth.

heat released by collision processes during accretion, and heat from decay of radioactive elements

explanation:

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