CAUSE
One question. One truth.
“Why is the Earth round?”
Gravity is the primary force shaping Earth into a sphere. Approximately 4.5 billion years ago, gravity pulled matter toward a central point, establishing hydrostatic equilibrium where all surface points are equidistant from the center of mass.
High confidenceStructural
CURRENT STATE
The Earth is an oblate spheroid, nearly spherical but flattened at the poles and bulging at the equator. The equatorial diameter is approximately 43 kilometers larger than the polar diameter due to Earth's rotation at 1,674.4 km per hour.
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