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How are the changes in atmospheric carbon dioxide described? A. Carbon dioxide levels have increased B.carbon dioxide levels cannot be ensured C. Carbon dioxide have remained the same. D. Carbon dioxide levels have decreased

User Ldx
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It is A. Carbon dioxide levels have increased

User Colan
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Good Morning!
A. Carbon dioxide levels have increased

The latest research indicates that, due to pollution caused mainly by automobiles and large industries, the amount of carbon dioxide in the atmosphere grows exponentially every year.


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User Gidil
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