The difference between normal rain and acid rain is_______
A. Normal rain is neutral, acid rain is acidic
B. The pH of normal rain is about 5.6, and the pH of acid rain is less than 5.6
C. Normal rainwater does not contain impurities, acid rain contains impurities
D. Normal rain falls in the countryside, acid rain falls in the city
Answer:B
The difference between normal rain and acid rain is_______
A. Normal rain is neutral, acid rain is acidic B. The pH of normal rain is about 5.6, and the pH of acid rain is less than 5.6 C. Normal rainwater does not contain impurities, acid rain contains impurities D. Normal rain falls in the countryside, acid rain falls in the city