Which of the following describes the difference between biomagnification and bioaccumulation?

Biomagnification occurs when chemicals build up in an environment, while bioaccumulation occurs when chemicals accumulate in the food chain.
Biomagnification occurs when chemicals accumulate in the food chain, while bioaccumulation occurs when chemicals build up in an environment.
Biomagnification occurs when chemicals build up in an environment, while bioaccumulation occurs when chemicals become stronger after repeated use.
Biomagnification occurs when chemicals become stronger after repeated use, while bioaccumulation occurs when chemicals accumulate in the food chain.