Exam 12: Running Water Streams and Rivers

Under what conditions will a braided stream develop?

An uplifted erosional remnant of a floodplain that formed when a stream was flowing at a higher level is called a(n)____________________.

If the formation of an oxbow lake results in an increase in stream velocity,explain what causes a stream to meander.

Briefly explain why braided streams are common in regions adjacent to glaciers.

What are some of the reasons running water is important to humans?

Lateral erosion creates conditions along a stream valley that promotes movement of material by another geologic process known as ____________________.

Headward erosion cuts through a drainage divide and diverts part of the drainage to another stream.This process is called

In meandering streams,the water velocity tends to be greatest in the ____________________ portion of the meander.

Briefly explain the sequence of events that leads to the formation of a stream terrace.

What powers the hydrologic cycle?

What is the ultimate base level for a stream?

Meandering streams have semi-circular cross-sections along most of their length.

The percentage of the Earth's water that is fresh water and is not frozen is ____.

The renewal of erosion which results in creation of stream terraces is generally attributed to a change in ____________________ level,or a change in climate resulting in greater ____________________,and thus discharge.

A delta with long,fingerlike sand bodies,each deposited in a distributary channel that progrades far seaward,such as the Mississippi River,is typically formed as a(n)____-dominated delta.

Briefly explain how a stream might adjust toward an equilibrium state following a heavy rain.