Philadelphia had canals leading through the city. true or false

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points. a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

Which area of russia is volcanically active? a. ural mountains b. baltic sea c. kamchatka peninsula d. volga river

What originally inspired countries to band together in intergovernmental organizations (igos) ? (apex) a. climate change b. a period of peace c. population decline d. global conflicts