Rock debris picked up in flash floods is deposited at the base of mountains in ____.
A) an alluvial fan
B) a barchan dune
C) a playa
D) an arroyo
E) a meandering river

Question

Quizplus · Accepted Answer

Alluvial fans are formed when flash floods pick up rock debris and deposit it at the base of mountains, typically forming a fan-like shape. Barchan dunes are crescent-shaped sand dunes, playas are dry lake beds, arroyos are narrow channels carved by water, and meandering rivers have a winding path. None of these features are directly associated with the deposition of rock debris from flash floods.

Rock Debris Picked Up in Flash Floods Is Deposited at the Base