Question

the climate of southwest asia has led much of the region to experience a scarcity of _____.

Explanation:

Southwest Asia (the Middle East region) has a predominantly arid and semi - arid climate. This climate is characterized by low levels of precipitation. Due to this lack of sufficient rainfall, the region faces a scarcity of fresh water (specifically, the resource that is scarce due to the climate is water; the arid climate with little rain leads to limited water availability for drinking, agriculture, and other uses).

Answer:

water (or fresh water)