Teacher:Given a text, write a compressed version of it in a single sentence.
Teacher: Now, understand the problem? Solve this instance: Once mercury is deposited in lakes, rivers, and oceans, it bioaccumulates in the food chain, resulting in high concentrations in predatory fish. In the U.S., most human exposure to mercury is the result of consumption of fish contaminated with methylmercury.
Student:
Once mercury is deposited in lakes, and oceans, it bioaccumulates in the food chain. Human exposure to mercurythe result of consumption of fish contaminated with methylmercury.