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.

a standing committee

explanation:

a is the final : )