Bringing water in from different areas can cause diseases and medical problems. Unfamiliar minerals and vitamins, along with diseases and bacteria, can manifest the water. People or animals whom have not adapted to the water's different diseases and bacteria can catch these diseases and get sick from the bacteria. Natives, on the other hand, may have adapted to the water's bacteria, and the body changes in order to fight off the different bacterium.
The Environmental Protective Agency is the main government institution responsible for enforcing water policy. So, the correct answer is A.
Upon the fall of Rome, Europe ceased being influenced by the cultures of the Mediterranian coast.
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The Boston Tea Party was an event during which crates of tea were thrown from ships into the river at the Boston harbor. This was done as a sign of protest against the British government and initiated the Independence war.