Question

why is the earth called a unique planet​

Answer 1

Explanation:

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 the blue planet. Because of its water, Earth is home to millions of species of plants and animals.

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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 the blue planet. Because of its water, Earth is home to millions of species of plants and animals.
Surface area: : 510072000 km2 (196940000 sq ...
Composition by volume: 78.08% nitrogen (N; 2; ...
Surface gravity: 9.807 m/s2 (1 g; 32.18 ft/s2)
Surface pressure: 101.325 kPa (at MSL)