The war. This is because During the war, more than 12 million Americans were sent into the military, and a similar number toiled in defense-related jobs. Those war jobs seemingly took care of the 17 million unemployed in 1939. Most historians have therefore cited the massive spending during wartime as the event that ended the Great Depression. Hope this helps! Please mark brainlist.
D all of the above because anything in an ecosystem adds to the biodiversity of it.
Presumably not well. They would be invading Native American territory.
