Which of the following statements about the Earth's atmosphere is true?

A.

In the past few decades, carbon dioxide levels have been rising.

B.

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

C.

A recent increase in carbon dioxide levels can contribute to a long-term cooling of Earth's climate.

D.

A recent decrease in carbon dioxide levels will increase plant growth on Earth.

this is science not mathematics

Question

24 March, 12:13

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Answers (1)

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Camryn Stevenson · Answer 1

B.

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

put in science