4. which of the following statements is true concerning the difference between river
valley civilizations and later classical civilizations?
a. river valley civilizations were much larger than the classical ones that followed.
b. classical civilizations tended to control more territories and people
river valley civilizations were more advanced in technological development.
d. classical civilizations were free from invasions from nomadic tribes.
-women
-slaves
-foreigners

legislative branch:

one of the three branches of government divided between the senate and the house of representatives.

- creates or makes laws

- power to override a veto

executive branch:

one of the three branches of government, headed by the president.

- enforces or carries out laws

- power to veto a bill sent to it by congress

judicial branch:

one of the three branches of government, headed by the chief justice of the supreme court.

- interprets laws

- power to declare laws or actions by the government unconstitutional

the anwser is a) to prevent military conflict