Question

why the earth called unique planet

Answer 1

Earth is called a unique planet as this is the only planet till now known where life exists. Life on earth is possible due to the high interaction between water, air and soil ( hydrosphere, atmosphere, lithosphere ) which forms ten narrow region of life called the biosphere.

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Answer 2

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The earth is neither too hot nor too cold.It has air and water which are very essential for our survival . The air has light supporting gases like oxygen because of these the earth is unique planet in the solar system .

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