Why does our government have built in checks and balances (first video)? How does the president's power balance congress (first video)? Why does the House of Representatives have so many members (second video)? Why does the Senate have so few members compared to the House (second video)? Why does congress have committees (third video)?

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

sorry i really dont know