The main contributors of acid rain are__________
A. sulphur oxides and carbon oxides
B. nitrogen oxides and sulphur oxides
C. carbon dioxide and carbon monoxide
D. nitrogen oxides and carbon oxides
Answer:B
The main contributors of acid rain are__________
A. sulphur oxides and carbon oxides B. nitrogen oxides and sulphur oxides C. carbon dioxide and carbon monoxide D. nitrogen oxides and carbon oxides