3. Explain the changing roles, impact, and power of political leaders, parties, and voting blocs over time. (9- 12.US.32)

They see their interest in that activity.

Explanation:

The roles, impact, and power of political leaders, parties, and voting blocs greatly changed with the passage of time because the political leaders, parties, and voting blocs see their interest in that activity and do their work according to it. The changing roles and power of political leaders occurs may be due to their preference and advantage in a particular activity. If they get their objectives, they changed their roles which shows that the political leaders work on politics.

b.

jim crow laws were enacted in northern states.

"germany's geographic location was an advantage when it was on the offensive in the war because it was situated next to an extremely wide river, the rhine, which was difficult for the allies to cross."