Question

2. Earth is a unique planet. Explain.
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Answer 1

Earth is a unique planet because only earth has life supporting gases and water to support life.

Answer 2

Earth is the only planet in our solar system that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water. Because of this, people sometimes call it "blue planet". Because of its water, Earth is home to millions of species of plants and animals.