Answer:
The period of human evolution has coincided with environmental change, including cooling, drying, and wider climate fluctuations over time.
Answer:
A desert geographic theme?
Explanation:
Deserts are characteristically deserted and lack an abundance of water, so this dry climate provides a fitting geographic theme for a group of people that learn to survive with a limited water supply.
The Mississippi River was relied on as a drainage system. It helped prevent flooding and saved many lives
The United States, we have an indirect democracy. The Direct democracy would not work at all in the country the size of ours. In a Direct Democracy, all the citizens vote on all the proposed laws. Here in the U.S. we elect representatives and they makes the laws for us people.