Question

3.
Why is the Earth called a blue planet ?
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Answer 1

Planet Earth has been called the "Blue Planet" due to the abundant water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water. However, liquid water is a rare commodity in our solar system. ... Liquid water covers most of the surface of our planet.

Answer 2

Explanation:

Planet Earth has been called the "Blue Planet" due to the maximum amount of water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water.