Exam 16: Fluvial Systems and Landforms

Runoff that flows in sheets toward a drain of some sort is called sheet runoff.

__________ refers to the concentration of natural drainage channels in a given area.

The primary stream of a drainage basin is called a tributary.

Alluvial fans are produced at the base of a mountain or hill where sediment is deposited from bedload-dominated stream channels.

Which of the following are examples of depositional landforms?

This is a small ridge that develops along the channel of a stream through the deposition of relatively coarse sediment when flooding occurs.

When considering situations when flooding occurs,describe why understanding flood frequency is important?

The hydrology in an urban system is considered ________ because these environments typically respond more quickly to the addition of water into the system.

Sediment deposited by a stream is called colluvium.

A graph that illustrates the change in stream gradient in cross section along a stream from its source to its mouth is called a(n)

When raindrops fall directly on to the soil,this process loosens,lifts,and drops sediment into new positions.

A confluence is the place where two streams join together.

A peak is a landform produced as a result of erosion.

Sediment that floats along in the stream is called

What are some of the impacts urbanization has had on flooding and stream flow? What type of flooding is most common in urban environments?

___________ is sediment deposited by a stream.

The level at which stream discharge can begin to spill out of the channel into the surrounding area is called flood stage.

The ___________ is a stream that can transport no more material than it is currently carrying.

When alluvium accumulates as a long,curving deposit of sediment on the inside of a stream meander,it is called a(n)

Alluvium is a low-lying plain that forms at the mouth of a river when the river reaches its ultimate base level.