Answer:
The technological and social developments of the Nile River Valley and Mesopotamian civilizations have given below:
Step-by-step explanation:
The Egypt Civilization flourished in the river valley of the Nile River. The Egyptians developed a large building structure called pyramids. They also knew mathematics, geometry, surveying, metallurgy, astronomy, writing, paper, medicine, the ramp, and the lever. Egyptian society structured like a pyramid where the pharaoh and those associated with divinity were at the top, and servants and slaves made up the bottom.
Mesopotamia civilization became one of the oldest civilizations in the world. The first potter's wheel first created by the ancient Sumerians in Mesopotamia. They also invented the plow.
The social structure of civilization divided into hierarchical social classes. These classes included king and nobility, which followed by priests and priestesses, upper class, lower class, and slaves.