Headwater is not normally known for fertile ground.
Answer to region contains fertile valley
No, it was an area of well-watered ground in southern Mesopotamia.
The Fertile Crescent.
because the dirt is fertile there.
Because it was very fertile
No. Jerusalem is in the Levant Region. The Levant Region and Mesopotamia together constitute the Fertile Crescent, so while Jerusalem is not in Mesopotamia, it is in the Fertile Crescent.
what is this
A crescent.
because of fertile region
high population density large agricultural population very fertile
A crescent.
Sandslash is normally a Ground type, but in the Alola region (Generation 7), there is a Sandslash version that is Ice-Steel type instead.