Which two regions did the great migration heavily affect?

The passage below can be revised to make it more concise. which word is a modifier that can be eliminated because it adds no meaning? dr. madison is somewhat skeptical about stories of global warming. she has gathered scientific data in remote areas to prove her position. somewhat global scientific remote

How did dynasties end and how did new ones start?

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.