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.