The term, 'hemisphere' is used to name each half of the earth, divided either north and south or east and west.
Hemisphere is taken from the Greek, and connects the prefix Hemi-, for "half," with sphere, or "perfectly round ball." Half of a sphere is a hemisphere. People utilize the expression to depict one-half of Earth. Geographers, or people who explore Earth, have separated the planet into two sets of two hemispheres. These are-
The Equator, or line of 0 degrees latitude, divides the Earth into the Northern and Southern hemispheres.
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