Answer:
Catholic and Protestant immigrants. Protestant and Chinese immigrants. Catholic and Jewish immigrants
Explanation:
Answer: New technology methods
Explanation: Techonology itself is developing quick from day to day. It is important to try and add new things that can improve it. So developing a specific method that is very well planned and established can advance technology.
Answer:
Land with waters that drained into the Mississippi River.
Answer:
I think that the answer is B. To develop plans or post-war Japan.
Explanation:
It appears to be the only one that applies to the Potsdam Conference