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A.

In what ways do human beings contribute to the greenhouse effect? Select all that apply.
by using renewable energy
b. by driving gas -powered cars
by studying extreme weather events
d. by making things out of plastic
C.

User Stupidfrog
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1 Answer

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It should tell you everything with the link given by the teacher on the test/assignment. Just click the link provided and see which answer choices are on there.
User Christian Gibbons
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