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Geology Chapter 10

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1.
1 point
A graded stream can be deepening its channel by down cutting while part of its energy is also widening its valley by ______ erosion.
2.
1 point
Flood control structures along the Mississippi River surrounding New Orleans are predominantly _____.
3.
1 point
The movement and interchange of water between the sea, air and land can be visualized by the ____.
4.
1 point
A "100-year flood" has a _______ percent chance of occurring in any given year.
5.
1 point
In North America, the ___ separates streams that flow into the Pacific Ocean from those that flow into the Atlantic Ocean and Gulf of Mexico.
6.
1 point
A ____ drainage pattern is one in which streams diverge outward likes spokes on a wheel.
7.
1 point
The ______ is the total area drained by a river and its tributaries.
8.
1 point
A(n) ___ is a step-like landform found above a stream and its floodplain. It is a remnant of an older flood plain or river-eroded flat surface.
9.
1 point
Rivers may develop pronounced sinuous (wiggly) curves called a ___ pattern.
10.
1 point
A(n) ___ drainage pattern of a river resembles a tree.
11.
1 point
A _____ is a ridge of sediment built by sedimentation on the middle or banks of a stream channel.
12.
1 point
A river's velocity is faster ____.
13.
1 point
Certain features on the planet Mars resemble _____ on Earth.
14.
1 point
___ is/are sudden localized floods of large volume and short duration, often triggered by heavy rainstorms.
15.
1 point
A stream can increase its length by _____.
16.
1 point
On large alluvial fans, the _____ sediment is deposited near the mountains.
17.
1 point
A stream can lengthen itself by ____.
18.
1 point
A(n) ___ stream flows in a network of rivulets (subchannels) around numerous sandbars.
19.
1 point
_______ deposits are found in streams where running water has mechanically concentrated heavy sediment such as gold.
20.
1 point
The limit to downcutting of a stream is called the ___ level.
21.
1 point
Deltas may be river dominated, tide dominated or _____.
22.
1 point
_____ meanders are meanders that retain their sinuous pattern as they cut vertically downward below the level at which they originally formed.
23.
1 point
_____ refers to sand grain movement in a series of short leaps or bounces off the bottom.
24.
1 point
Streams erode rock and sediment by ___.
25.
1 point
_____ are low ridges of flood deposited sediment that form on either side of a stream channel and thin away from the channel.
26.
1 point
________ are low ridges of flood-deposited sediment that form on both sides of a stream channel and thin away from the channel.
27.
1 point
Movement of cobbles and boulders by rolling, sliding, or dragging in a streambed is called ____ load.
28.
1 point
The delta of the ______ River is a wave-dominated delta that resembles the Greek letter delta and is the origin of the name.
29.
1 point
A ridge or strip of ground separating one drainage basin from another is termed a ____.
30.
1 point
A cutoff meander may become a crescent-shaped __.
31.
1 point
The ______ load is sediment light enough to remain lifted indefinitely above the bottom by water turbulence.
32.
1 point
The process of deepening of a valley by erosion of a streambed is called __.
33.
1 point
The gravel bed load of a stream moves by _____.
34.
1 point
A(n) __ is the body of sediment deposited at the mouth of a river when the river's velocity decreases.
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