((d) Why is the Earth called a unique planet..?
Answers
Answer:
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 mi); 148940000 km2 land (57510000 ...
Composition by volume: 78.08% nitrogen (N; 2; dry air); 20.95% oxygen (O; 2); 0.93...
Surface gravity: 9.807 m/s2 (1 g; 32.18 ft/s2)
Surface pressure: 101.325 kPa (at MSL)
Explanation:
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Conditions favourable to support life are probably present only on Earth. The Earth is neither too hot nor too cold. It has water and air, which are very essential for our survival. The air has life-supporting gases like oxygen. Because of these reasons, the Earth is a unique planet in the solar system.