Which best explains the effect of chemicals on the environment?
о A. Chemicals do not affect the environment.
O B. Chemicals are only harmful to the environment.
C. Chemicals can be helpful or harmful to the environment.
D. Chemicals are only helpful to the environment.
о A. Chemicals do not affect the environment.
O B. Chemicals are only harmful to the environment.
C. Chemicals can be helpful or harmful to the environment.
D. Chemicals are only helpful to the environment.