Answer:
Explanation:
Lake Tahoe - Western United States
Ohio River - Eastern United States
Colorado River - Western United States
Arctic Ocean - Canada
Hudson Bay - Canada
Hudson Bay is located north of Ontario in Canada, the Arctic Ocean is around Greenland and North of Canada, Colorado river is between Arizona and California, Ohio river is between Kentucky and Indiana, lake Tahoe is between Nevada and California.
It experienced a stability partly because it gave the idustrial middle class :
I would choose non-polluting energy source and useful in remote areas - that is if there are plants and industries that are away from the general population.
It increased efforts to maintain order and enforce laws.
B - Slave revolts.
The revolt of Spartacus, which was also the most famous slave uprising in the history of the Roman Empire, lead to questions about the usefulness and effectiveness of the current governmental system in Rome. This, along with other factors, made them plunge into a crisis which ended through the transition to an empire.