How did early settlers of North America change the environment to make it easier to travel and trade goods? A. They built a vast network of rail lines.
B. They carved tunnels to pass through mountains.
C. They cleared trees to build roads.
D. They dammed streams to create reservoirs.

D. They dammed streams to create reservoirs

Explanation:

Lewis and Clark (first inhabitants) did it

Columbus did it

Sacajewya did it

a.

Explanation:

b) they want the land taken away from the wealthy landowners and given to peasants.

answer: an oligarchy is a political system in which the government is run by a group of noble families, or the elite wealthy members of a society. a present day oligarchic government is iran.

explanation: