Which statement is true about the agricultural revolution?
A It gave people a steady food supply for the first time.
B It spread slowly from Sumer to the rest of the world as people learned about it. C It occurred suddenly in Mesopotamia.



Which descriptions are true about a civilization?

A Well-developed cities grew.

B Domesticated sheep, cattle, or goats provide most necessities.

C Trade diminishes as more people make a wider variety of goods.