Use reasoning to answer the following question. Which type of pollution is most harmful to lungs?
Options:
- (A) Lead
- (B) air
- (C) Cars
- (D) oil
- (E) acid
- (F) CFCs
- (G) SO2
- (H) mold
Air pollution harms the respiratory and circulatory systems. Exposure to ozone can diminish lung function and increase susceptibility to respiratory infection. Exposure to air pollution can harm the lungs.
So, the answer is (B).