Geometry area and perimeter help plz :(

How did geography influence the settlement of early africa.

Why are there increasing problems with construction in permafrost regions? a. the existence of black spruce trees b. global warming c. booming arctic populations d. longer freeze-thaw cycles

What was rhe biggest effect that new technology had on farm workers ? many works lost their jobsmost works learned new skills most workers become more efficient many workers could earn more in less time