Answer:
B. mercury
Explanation:
Mercury is one of the most common toxic chemicals that can be found in contaminated fish. This is because mercury has become a common pollutant in rivers and other waterways since it it commonly used in mining and industrial operation, and these operations end up throwing the mercury into the waterbodies, where the fish absorb it.
Social class division an more complex religious beliefs.
The Vice President will be come the president.
To deter Americans from the ideology of communism that was becoming more widespread throughout Europe and Asia