Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called
A)deltas.
B)deposition.
C)clastics.
D)alluvial fans.

Question

Quizplus · Accepted Answer

Alluvial fans are cone-shaped deposits of sediment that form at the mouth of canyons in arid and semiarid climates. They are created by the deposition of sediment as flowing water slows down and spreads out onto a flat plain. Deltas are similar deposits found at the mouths of rivers, but they tend to have a more fan-shaped appearance and are formed by the deposition of sediment carried by a river as it enters a larger body of water. Deposition refers to the process of sediment being laid down or dropped off in a particular location. Clastics are a type of sediment consisting of broken fragments of rock and mineral grains.

Cone-Shaped Deposits of Sediment Often Found at Mouth of Canyons