mọi ng ơi cứu mình với Which of the following statements is NOT TRUE?

a. Light pollution is a big problem, especially in urban areas.

b. Pollutants can come from both artificial and natural sources

. c. People singing karaoke loudly late at night is a form of pollution.

d. What some people consider are pollutants are not pollutants to others.

e. The environment can always clean up pollutants by itself.