Question

question 19 of 26
the early river valley civilizations that emerged after the neolithic revolution influenced modern - day practices by instituting the

a. exchange of excess goods and services
b. use of algebra to perform advanced calculations
c. concept of equality for all people in a society
d. use of steel to strengthen buildings

Explanation:

Early river - valley civilizations like Mesopotamia, Egypt, etc. played a key role in developing trade. The exchange of excess goods and services (trade) was an important practice that has continued into modern - day. Algebra for advanced calculations was not a major influence from early river - valley civilizations. Concepts of equality for all people were not well - established in early civilizations. Steel was not used in early river - valley civilizations as it came much later in history.

Answer:

A. exchange of excess goods and services