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5 votes
In the last 100 years, which of the following have added excess carbon dioxide to the atmosphere?

1) power plants
2) machinery
3) cars
4) ALL OF THE ABOVE
pls answer asap, would be very appreciative:)​

User Rockbot
by
5.4k points

1 Answer

7 votes

Answer:

d

Step-by-step explanation:

User MrKobayashi
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