Answer: the answer is c or exploration and discovery
Explanation: brainlest please
When they started to establish factories in the cities
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.
C.France and Russia is the answer please mark me as brainlest
