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3/4 of the earth's surface is covered by water.....this abundant water appears blue as it takes the sky color..and no where in the galaxy you'll find this much water and blue color due this it is known as blue planet..
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Incomplete answer.......
whts missing
You should hv told about the composition of atmosphere……and could hv explain the physics behind it…
About 71% the earth's surface is covered with water. When pictures of earth are taken from satellites from outer space the presence of this vast amount of water gives the earth an overall blue look that is why earth is called the blue planet.
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