Exam 14: Streams and Floods: the Geology of Running Water

A radial drainage network is likely to indicate a current or former _______ in the landscape.

Sketch a meandering stream in map view.Your drawing should include (labeled)the channel,floodplain,meanders,and at least one oxbow lake.How does an oxbow lake form?

Over time,a stream tends to increase in length by eroding and extending its channel upstream,in a process called ________.

A "bird's foot" delta such as the Mississippi River delta forms when the ________.

Running water dissolves soluble minerals.This material is most likely to be transported by a stream as _________.

A trellis drainage network such as the one shown below is most like to form in landscapes develop on which type of geologic structure(s)or feature(s)?

Which of the following is MOST likely to result in stream rejuvenation?

Urbanization of a watershed is most likely to result in __________.

The flat-lying area surrounding a river channel is termed the ________.

What is a point bar?

The main stream that is supplied by all tributaries within a drainage network is termed a ________ stream.

The shape of a delta is primarily determined by ________.

Braided streams ________.

Which of the following scenarios is more likely to cause a flash flood than a slow-onset flood?

The average velocity of water in a stream

Using the image below,label the stream channel,meander,floodplain,headwaters,and mouth.Additionally,sketch a cross-section of this stream from A to A' and from C to C'.

In an ephemeral stream,the groundwater table lies _________ the streambed.

What is the term for the land area drained by all of the streams that empty into a tributary?

Contrast the gradient of a typical stream at its headwaters versus its mouth.Sketch the longitudinal profile of a typical stream.

The deepest part of a curved stream channel,where the flow is fastest,is called the ________.