Exam 16: Streams: Flowing Water Shapes the Landscape

Which of the following is obvious when standing on a stream bank?

Drainage basins are separated from one another by

________ would not increase the intensity of a flash flood.

Why would we want to know the 100-year flood recurrence interval?

________ has the most rivers with high sediment loads.

What would happen if you used data from a very dry set of years to compute the recurrence interval calculations?

Name some purposes of dams.

Why is a stream able to pick up a grain of sand, but not a smaller grain of silt?

A ________ of sea-level causes a lowering of base-level and ________ in the lower part of a stream valley that terminates in the ocean.

Based on observations, geologists have determined that this factor does not help to determine whether a stream will have a meandering or braided pattern.

How is stream power calculated?

Sediment is deposited in a stream when

Why does water released from a dam erode the streambed so much more than it would have before the dam existed?

Which of the following is not a reason that grain size of sediment tends to decrease downstream?

Figure 16.28 -Using Figure 16.28 in your textbook, a flood level that occurred five times in 50 years is known as

Judge the following sentence according to the criteria given below. Sediment loads are largest in areas of steep relief because river slopes are steeper and steep valley walls are more prone to mass movement.

A stream increases its channel slope as it moves downstream. If the water depth remains the same or decreases slightly, this stream will

If two streams undergo the same downstream drop in elevation of 300 meters, which stream would have the lowest channel slope?

The area where the flow is faster and deeper around the outside of a channel bend is called

Streams preferentially erode ________ and ________ valleys where rock is most easily eroded.