Why were people in new england able to use water power to run mills?

People in New England were able to use water power to run various mills because of the availability of woods and water. Labor was expensive in the colonies as they brought from England and Africa via crossing the Atlantic Ocean. With the introducing of the mills in New England, they replaced the human and animals. Water-powered mills eventually paved the way for showing the benefits of machinery and mechanical power. By 1700 there were about 70 water-powered mills in New England.      

checks and balances are needed to keep the government running smoothly, they allow the three branches of government to overrule one another so that one branch of government does not become too powerful.

the revolution instituted a short-lived roman republic.