Mountians were important to early greek city states because they

From early times the Greeks lived in independent communities isolated from one another by the landscape. Later these communities were organized into poleis or city-states. The mountains prevented large-scale farming and impelled the Greeks to look beyond their borders to new lands where fertile soil was more abundant.

Explanation:

From early times, the Greeks lived in independent communities that were quite isolated from one another due to the landscape/geography. Later on, these communities were organized into polis or city-states. The mountains prevented large-scale farming and impelled the Greeks to look beyond their borders to new lands where there was a greater amount of fertile soil (good soil for planting).

Hope this helped you!

the story goes that because of this belief, constantine was able to defeat his foes. constantine became an ardent1 christian. christianity and other religions were tolerated under constantine's rule. constantine also was responsible for the building of a great cathedral in rome.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.