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yanalaym [24]
3 years ago
7

Which statement about the earth’s atmosphere is true? Please help

Biology
1 answer:
Hatshy [7]3 years ago
4 0

Answer:

D. in the past few decades, carbon dioxide levels have been falling.

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Which pregnancy-specific structure is responsible for delivering nutrients and oxygen to the fetus and removing waste products?
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Blastocyst placenta.

Explanation;

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