1. which form of transportation made it possible for people to move to the suburbs in the late 1800s?

a. subways
b. trolleys
c. cable cars
d. all of the above

2. city public services were paid for by

a. the federal government.
b. tax money.
c. charity from the wealthy.
d. political machines.

3. the panama canal

a. was dug on land owned by columbia.
b. shortened the shipping route between the atlantic and pacific oceans.
c. was not at sea level.
d. all of the above