Match the civilization with its famous architecture:

1. egypt
water tank and citadels
2. mesopotamia
ziggurats
3. indus valley
pyramids

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

How did the shift to farming affect native american cultures?

In general which explains why communist revolutions did not happen