Which statements describe why independent city-states developed in ancient greece?
select all correct answers.
a. travel across the seas was often difficult and limited trade and communication.
b. greeks valued the sense that they were united into one nation.
c. living in the mountains kept groups of people separated from each other and made travel difficult.
d. the rivers were navigable and allowed for travel and communication.

The correct answers are letter A and C.

During antiquity, Greece was divided into city-states. Each, due to its cultural diversity, had autonomy and its own way of governing. While Sparta prepared its youth for war, sending them as a child into exile, instructing them with military tactics and physical training; Athens encouraged the intellect and gained great prominence in the theater with the development of the genres tragedy and comedy (representations of real life as a form of entertainment and information). Athens also excelled in architecture, with innovative buildings such as the Parthenon, a temple named after the goddess Athena; and in philosophy, with the thinkers Socrates, Plato and Aristotle.

A. Travel across the seas was often difficult and limited trade and communication.

C. Living in the mountains kept groups of people separated from each other and made travel difficult.

Explanation:

I took the test it was corect

the answer should be arrogance & pride.