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The Earth is mainly covered in water, even more than land. when seen from space, Earth is mostly blue because of the oceans, ans so is called the blue planet. this is also from the fact that we are the only planet in the solar system that can support life, because we have drinking water.

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11y ago
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11y ago

Because earth is covered by oceans, and is 75% water

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Q: Why earth is often called a blue planet?
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