Permanent streams in desert regions are rare, and when they do occur,______ .
A) they have numerous tributaries to keep them supplied with water as they cross the desert
B) they originate outside of the desert region and have few tributaries in the desert
C) they get their water from wadis and arroyos
D) they originate in a glacier region

Question

Quizplus · Accepted Answer

Permanent streams in desert regions typically originate outside of the desert region and have few tributaries in the desert. This is because desert regions receive little precipitation, so there is little water available to feed tributaries.

Permanent Streams in Desert Regions Are Rare, and When They