Invatamant: Liceu / Colegiu; Autor: Educativ
Descriere: one of the planets in the solar system, the third in distance from the sun
and the fifth largest of the planets in diameter. The mean distance of the
earth from the sun is 149,503,000 km (92,897,000 mi). It is the only planet
known to support life, although some of the other planets have atmospheres
and contain water.
The earth is not a perfect sphere but is slightly oblate, or flattened at
the poles. The diameter of the earth measured around the North Pole and the
South Pole is about 42 km (26 mi) less than the diameter of the earth
measured at the equator.
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