Compare the emergence of advanced civilizations in Meso and South America with the four early river valley civilizations.

Both the Egyptians and the Aztecs believed what about their crops? (1 point)

a
Gods and goddesses made them grow.

b
Building dams was the only way to make them grow.

c
They would only grow if the pharaohs were properly honored in death.

d
Human sacrifices were necessary to make them grow.