Answer:
Pebbles
Explanation:
Small pieces of rock are normally referred to as pebbles
If that would happen they would become a free nation
D). Vast empires.
Classical civilizations developed vast empires, whereas early river valley civilizations did not.
I believe the answer is (weaken the power of the church)
Explanation:
the power of the Catholic Church decreased. trade in europe increased. trade in europe decreased. the knowledge between cultures increased.