Question

Our earth is also known as the blue ______ .​

Answer 1

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Answer 2

Our earth is also known as the blue ______ .

Composition and Structure of the Oceans. 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.