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Carbon, an important element for life, keeps cycling between the spheres of the earth. carbon dioxide in (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)(excre tion) .
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Carbon, an important element for life, keeps cycling between the spheres of the earth. carbon dioxid...
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