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Taya2010 [7]
2 years ago
9

What source of energy is needed in both of these systems to drive these cycles?

Biology
1 answer:
zimovet [89]2 years ago
4 0
It comes from the sun. The sun evaporated earth water
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The correct word would be pollution.

<em>Pollution can be described as the presence of ecologically harmful substances in the environment. </em>

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