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BARSIC [14]
3 years ago
9

Highway vehicles are responsible for ___% of the nox air emissions in the u.s.

Biology
1 answer:
dangina [55]3 years ago
7 0
Hello There!

Highway vehicles are responsible for 38% of the nox air emissions is the US.

Hope This Helps You!
Good Luck :) 

- Hannah ❤<span />
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