Saan matatagpuan ang fertile crescent at bakit ito tinawag na fertile crescent? Tagalog

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.

Ihave no idea what the answer is

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary. 

Answer collision and mountain formation;