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29 votes
29 votes
The greenhouse effect is caused by a building up in the atmosphere. Which of the following gases is a concern?

a. sulfur dioxide
b. carbon dioxide
c. oxygen
d. nitrous oxide

User Sandhu
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2 Answers

18 votes
18 votes

Answer:

B. Carbon dioxide.

......

User Romona
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3.0k points
24 votes
24 votes

Answer:

b

Step-by-step explanation:

it is a major culprit in global warming

User Robin Green
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