What hydrological characteristic distinguishes the drainage basins of Oman, such as Wadi Shab, Wadi Bani Khalid, and Wadi Dayqah?
Answer and explanation
Correct answer: C. Ephemeral wadi courses subject to flash flooding after torrential storms
- Step 1: Oman has zero perennial rivers that flow continuously throughout the year.
- Step 2: Surface drainage takes the form of wadis, steep limestone canyons and gravel riverbeds that remain dry for most of the year.
- Step 3: When rare heavy cyclonic or convective rains occur, wadis experience rapid, powerful flash floods that surge down to the coast.
Answer
Ephemeral wadi courses subject to flash flooding after torrential storms.
Why not the others: Oman has no navigable rivers, no underground conduits to the Dead Sea, and no alpine snowfields.
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