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Lostsunrise [7]
3 years ago
8

Two ways in which carbon dioxide enters the atmosphere?

Biology
1 answer:
LiRa [457]3 years ago
5 0
Atmospheric carbon dioxide comes from two primary sources—natural and human activities. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas.
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