There's only one of those choices that would help make the AIR cleaner, but it's not B. That choice has to do with the earth, not the air.
Please re-think.
Could I get some help please and thank you?!
How could a city reduce its air pollution?
A improve its public transportation system
B eliminate the dumping of all solid waste
C eliminate runoff from chemicals used at the airport
D require all cars use gasoline with lead
I think it is B
1 answer