Why were so many cities able to develop between the Tigris and Euphrates rivers? (a)The cities were protected by mountains to the west.
(b)The forests provided plentiful lumber for construction.
(c)The cities were protected by a vast desert to the east.
(d)The rivers were used for irrigation, which led to a food surplus.

D

Explanation:

Ancient civilizations had been known to begin developing around rivers, since water was not as abundant. The rivers were commonly used for drinking and irrigation.

newton is important because he contributed more to the development of science than any other person in history. isaac newton is remembered as the greatest scientific genius who ever lived. his discoveries about physics, light, and mathematics changed the world.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism