Answers DCSS Earth Systems CR 24-25 Unit Test — Unit testQuestion 12

12

QuizMultiple Choice

Unit Test — Unit test

Question 12 • DCSS Earth Systems CR 24-25

Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?

Answer

A

water vapor

B

methane

C

fluorinated gas

D

carbon dioxide

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