1) what causes people to move? list at least three reasons. 2) how long have humans been on earth?

Hello there!

1) From a historical/nomadic stand point, three possible reasons to move would be:

* To change locations as the weather changes.

* To follow the herds of animals.

* As a tradesman or craftsman, travelling was needed to exchange goods or to practice their craft in certain places. Therefore, they were not capable of sustaining a community in a sedentary lifestyle.

2) Humans have been on earth for an estimated 200,000 years

Hope this could be of use to you.

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.

the scientific revolution brought us a renewed understanding of humanity and our place in the universe, new scientific equipment, and new laws as a basis for future scientific discovery.