Conferring to environmental scientists, United States air pollution control laws would be weakened if controls on petroleum refineries were relaxed. In addition, respiratory illnesses in emerging countries are most probable to be caused by particulate matter and it would be ineffective to avoid lead poisoning by banning the use of lead pencils in schools.
It is important to the west region because it provides the west region with abundance of national resources. It has metal fertile soil and lots of fish. The Columbia River is one of the largest rivers.
Answer:
D
Explanation:
I don't really know how to explain I just know the answer
It was divided into 60 townships.