The great answer is monsoon
Answer:
It appears that you are talking about the Middle Ages so the answer is 'C'. Irrigation goes back to pre-history and the fertile crescent.
Explanation:
The first people to arrive in America were Native Americans. They arrived about 13,000 years ago. However the first colonists arrived around 1607.
Answer:
No, because California and Oregon are corrupt and people are moving away from them.
Explanation: