Aaron Douglass is the answer i believe
Answer:
protection of wildlife - first choice
Answer:
by using cause and effect
Explanation:
It might be war but go with war.
The idea of the us gaining all land from one seaboard to the other is called manifest destiny the us gained these lands through several different purchases, annexations, and agreements such as the annexation of texas the treaty to give the us land in oregon below the 49th parallel and so forth.