In the carbon cycle, carbon (C) is returned to the atmosphere by __________.

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    photosynthesis
    evaporation of water
    burning of fossil fuels
    respiration of plants and animals
    The third and fourth answers are both correct.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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The third and fourth answers are both correct.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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