Describe the migratory patterns of early humans. What do you think was the primary reason for their migration? What was the common factor in the location of each of the first settlements.

Climate change, water supply, building materials, quality of soil, climate, shelter and defence

Explanation: Climate change because climate change can have positive affects and negative affects on the environment. In this case, the climate change had a negative affect.  A common factor in the location of each of the first settlements is water supply, building materials, quality of soil, climate, shelter and defence