Question

Most of the Middle East relies on water pumped from regional aquifers that are being quickly depleted. Most scientists believe this depletion is MAINLY caused by global climate change and
A. oil exploration.
B. military conflicts.
C. population growth.
D. industrial demands.

Answer 1

Most scientists believe that the depletion of water that is being pumped from the Middle east is caused by global climate change and population growth coupled with industrial demands C/D. 

The reason for this is that both of the second two are intertwined and that both of them require a lot of water.