which question would form the best basis for a quality research paper?
A.Is maintaining the environment a good thing or a bad thing?
B.What impact does air pollution in cities have on respiratory health?
C.What is the most polluted city in the United States?
D.How much pollution is over New York City?

Respuesta :

I think it is b because you have to explain in three or more bigy paragraphs why
B. what impact does air pollution in cities have on respiratory health?