asked 91.0k views
3 votes
Which of these increases the level of carbon dioxide in the atmosphere?

A. Driving a car
B. Traveling by plane
C. Cutting down trees
D. All of these

2 Answers

8 votes
D.All of these... all of them produce carbon dioxide
answered
User Yushan
by
8.4k points
7 votes
C . Cutting down trees
answered
User Patrick Yu
by
7.1k points

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