<h2>answer is:</h2><h2><em>
German princes picked the king weak royal authority, so states of Germany didn't unify during the middle ages.
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The problems between different cultural groups were caused by: C. a wave of immigrants moving to the cities of the northeast.
<u>Explanation:</u>
A cultural group is defined as a group of people who follows same beliefs, patterns of behavior, and values. The cultural group is identified by their behavior and way of thinking.
During 1850, the Northern cities have different cultural group. There were many conflicts between the cultural groups. This is was due to immigrants moving to the cities of the northeast.
Immigrants are people who move from their own country and settle down in another country.
Answer:
START I was the first treaty to provide for deep reductions of U.S. and Soviet/Russian strategic nuclear weapons. It played an indispensable role in ensuring the predictability and stability of the strategic balance and serving as a framework for even deeper reductions.
Explanation:
