Question

Why is the earth also known as the blue planet?

Answer 1

It is so because the amount of after present on earth and when scientist went to space they saw the earth in blue color that's why it is known as blue planet.

Answer 2

becoz the earth is 70% covered by water and 30%by land when we see towards the sky we think that sky is blue in colour but it is not there because it is a atmosphere which is present above the earth that make the sky to be look like a blue in colour. .
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