What tunnel systems, dug into the ground or carved into rock, water many oases of the Arabian Peninsula that have a date palm overstory?
Answer and explanation
Correct answer: A. Aflaj
- Step 1: Oases in arid or semi-arid zones with a date palm overstory are usually located below plateaus and watered either by springs or by aflaj. Answer: Aflaj. Aflaj are tunnel systems dug into the ground or carved into the rock. Why not the others: Desalination pipelines, Artesian rain gutters and Glacier channels don't fit.
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