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Luda [366]
3 years ago
12

Pls help! 20 points!!!!!!! Don't just answer for the points!!!

Biology
2 answers:
Jobisdone [24]3 years ago
3 0

Answer:

1.a

2.a

3.a

Explanation:

Juli2301 [7.4K]3 years ago
3 0

Answer: The graph labeled  aggregate emissions  shows that pollution control methods are having a positive effect in the United States. The proof is  a decreasing trend in this graph, with the percentage drop over this period reaching  -63 %.

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