Mercury is environmental pollutant that is produced by the burning of fossil fuels and can be toxic to wildlife and humans. what does this show about the impact of chemicals on the environmental?
a. the beneficial effects people get from chemicals may have unintended harmful effects on the environment.
b. people cannot control the negative effects of chemicals on the environment.
c. the harm chemicals could have on the environment outweighs the benefits that people get from the chemicals.
d. all chemicals that people introduce into the environment are harmful.