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help! ineed this anwser by 2nite!!!!!!

2007-02-13 10:34:48 · 2 answers · asked by longhornzmaniac 1 in Environment

2 answers

All energy on earth originates with the sun. The carbon cycle is no exception.

2007-02-13 10:37:29 · answer #1 · answered by Warren914 6 · 1 0

The sun. We exhale carbon dioxide as a by-product of cell respiration. Carbon is converted into an organic form by photosynthesis, powered by -- well, you know the rest.

2007-02-13 18:44:40 · answer #2 · answered by Intrepyd 5 · 0 0

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