Answers

2016-02-23T22:02:00+05:30
 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.
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2016-02-23T22:06:36+05:30
Because major portion of the earth is covered by water which is blue in colour made earth as a blue planet.
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