Most people in botswana earn their living doing which of the following? a) farming b) tending livestock c)working in diamond mines d)working in construction

What they did was Tending livestock.

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2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."