Box 21-3 (page 509) shows that CO 2 in human breath in the United States has a
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Box 21-3 (page 509) shows that CO2 in human breath in the United States has a value of δ13C different from that of CO2 in human breath in mainland Europe. Suggest an explanation.
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The CO 2 that we exhale is derived from oxidation of the food we eat The ...View the full answer
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