Structure
About 3000 years ago people believed that the earth was flat.But people wondered why ships
disappeared at the center.Sailors too comeback from journeys and were proof the ships did not
fall off the edge of earth.
But after many myths and studies it was cleared by the scientists that Earth is round.
Earth Facts
Average distance to sun from earth is around 150 million km.
The radius of earth is almost 6400 KM
CIRCUMFERENCE -40077 KM at the equator,40009 km at the poles
Duration of one revolution around the sun:365.26 days..
Number of Moons:1
Mass of earth:Around 6 trillion tons..
the end
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