What did mesopotamians use to control the flow of rivers and grow crops

Underline the sentence that describes washington's first cabinet. what branch of the government is the cabinet in?

What is the main social system that existed in ancient china?

Plz which of the following statements about life in europe during the middle ages is not accurate. a. by the middle ages the only unifying factor in europe was christianity. b. most people lived in rural areas and worked on farms. c. priest, monks and church officials were virtually the only people in europe who could read and write d. most people lived in cities or towns and worked as skilled artis most people lived in cities or towns and worked as skilled artisans.