Answer: a. The War Production Board helped factories quickly shift from only making consumer goods to making war materials.
Explanation:
A key part of the U.S. being able to join the Second World War and contribute so effectively in the time that it did, was the War Production Board's efficiency in shifting American consumer production to war materials for use by the U.S. military and the Allies.
Thanks to the Board, companies shifted their focus from consumer goods even though there was initially some massive pushback. Following a national campaign, opposition subsided and the U.S. was able to pump out so much war material that the war would not have been won without.
Answer:
Invasive species, including communicable diseases, etc..
Answer:
The Inca were fighting a civil war among themselves.
Explanation:
The reason the Inca empire was defeated by the Spanish conquistadors was as a result of the Inca fighting a civil war among themselves.
This was as a result of the struggle for leadership after the death of the previous leader. There was tension in the land and it led to them taking advantage of the whole situation.