Im not really sure on this one. However, I do think the answer is B. Since, moving the factory's away from neighborhoods would mean moving the source of pollution farther away.
Hi!
The Black Hills and the Badlands are highland areas of the Great Plains.
Answer:
The fact that the First World War was a global war was itself the product of a global order, shaped by the European great powers and held together by an embryonic economic system. ... Decisions made in the interest of individual nations also had an effect on the widening of the war from a regional dispute
thank me later
From the diary of a Surgeon at Valley Forge