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Carbon, an important element for life, keeps cycling between the spheres of the Earth. Carbon dioxide in the_____ (atmosphere)(biosphere)(geosphere)?is absorbed by the oceans and is used by aquatic organisms for biological processes. But aquatic organisms return some of it back through (evaporation)(photosynthesis)(excretion) .

Respuesta :

Atmosphere and excretion.
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Answer:

The answers are " Atmosphere, Excretion"

Explanation:

Carbon is present in the atmosphere in the form of carbon dioxide and carbon mono oxide. Carbon dioxide in the atmosphere is absorbed by the oceans and then it is used by aquatic organisms for biological processes. After its consumption in the ocean it is returned back to the atmosphere in the form of excretion produced by the aquatic organisms present in the depth of the sea.

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