Mark the statement if it describes a characteristic that pulled the greek city-states together.

a. worship of the same gods
b. common language
c. the government

I think the best characteristic that is common among the Greek city allow them to be pulled together in one city are letters A. worship of the same gods and B. common language. I hope you are satisfied with my answer and feel free to ask for more 

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.