Answer:Yes many groups were oppressed but mostly the japanese citizens but african american progress also had great strides.
Explanation:during the second world war groups of japanese citizens were sent to a americanized form of concentration camps almost all had nothing to do with the war in the east. But the african americans had great progress being able to fly planes for the army and being very efficient protecting most of there assigned bombers in formation but for the most part they did not see much real action in the front considered inferior to white soldiers.
The option that does not explain why a large part of the Great Plains became known as the "Dust Bowl" would be that "<span>The soil of the Great Plains was too rocky to support farming," since the soil was (usually) relatively fertile. </span>
A, D
Both of these apply for a a civilization. B and C are incorrect.
Needs of people diversify dramatically, this then leads to an increase in trade as well because more people need different goods. This in effect causes people to trade more.
