Which word best describes the hot weak inner part of the upper mantle which can flow

Asthenosphere is the answer of this question. It best describes the all above mention properties. 

Asthenosphere is the the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.