Why does the Earth assume the shape of an oblate ellipsoid?
(a) The Earth's rotation causes the
Earth to bulge slightly at the
equator and flatten at the poles
(b) The Earth's rotation causes the
Earth to bulge slightly at the
poles and flatten at the equator
(c) The Earth's revolution causes
the Earth to bulge slightly
at the equator and flatten at
the poles
(d) The Earth's revolution causes
the Earth to bulge slightly at
the poles and flatten at the
equator