Because the difference is we all come from a certain type ethnicity and the votes compared to Ethnicity depends on wha type ethnicity we come from...
The condition of scare rainfall for a few years is known as a drought (I think)
Because they found skulls in South Africa that was from ages ago{proof}
The conclusion that can be drawn from this chart is Native American groups shared some characteristics and did not share others. The correct answer would be option A. They shared the characteristic which is considering farming as important to all of them.