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why is earth often referd as a blue planet ?

A-When viewed from space, the biosphere always looks blue.

B-Most people like blue.

C-The sky is blue.

D-The hydrosphere looks blue and covers three-fourths of the Earth’s surface.

NEED ANSWER ASAP

Respuesta :

The earth is often referred as a blue planet because the hydrosphere looks blue and it covers 3/4 of the earths surface. So the answer is D

Answer:

D-The hydrosphere looks blue and covers three-fourths of the Earth’s surface.

Explanation:

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