Answer:
They built a strong levees or as some call it earthen walls, they did this to keep water out of their cities
Answer:
I think it is important because if the earth gets way to hot things will die off like humans and animals
I think that the best name for this is "Island".
The biggest Island is Greenland, and there is some discussion of whether we should rather think of Greenland as a continent. There is also some discussion whether we should think of Australia - around 3 times the size of Greenland- as an island, too
Social stratification<span> is a society's categorization of people into socioeconomic strata, based upon their occupation and income, wealth and </span>social status, or derived power.
