Chapter 6 Earth Science

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1.
1 point
As a streams gradient increases, the water typically slows down.
2.
2 points
A cavern is an underground chamber formed by ____.
3.
1 point
Of the water available, the majority of water is salt water.
4.
2 points
Permeable rock layers or sediments that transmit groundwater freely are called ____.
5.
2 points
What is the energy source for the water cycle?
6.
2 points
A stream’s discharge
7.
2 points
When groundwater enters underground fractures or caverns in hot igneous rocks, where it is heated to boiling temperatures, what feature can form?
8.
2 points
Which of the following is NOT a major source of groundwater pollution?
9.
1 point
On a curve, the fastest portion of a stream is the outside of the curve.
10.
2 points
The ability of a stream to erode and transport material
depends largely on its
11.
2 points
The flat portion of a valley floor adjacent to a stream channel is called a ____.
12.
2 points
Which of the following is associated with areas of karst topography?
13.
2 points
Which of the following factors does NOT influence stream velocity?
14.
2 points
Which of the following is NOT a major source of
groundwater pollution?
15.
2 points
The average annual precipitation worldwide must equal the quantity of water ____.
16.
2 points
What is the ultimate base level of a stream?
17.
1 point
Streams that flow over floodplains often move in wide curves called glaciers.
18.
2 points
Most freshwater on Earth is:
19.
2 points
One flood control method has been to attempt to keep the stream’s flow within its channel by creating ____.
20.
2 points
One major cause of floods is ____.
21.
2 points
What type of stream valley would form in a mountainous area?
22.
2 points
A drainage basin is ____.
23.
2 points
The water cycle is the ____.
24.
2 points
The vertical drop of a stream channel over a certain distance is called ____.
25.
2 points
Any formation in which groundwater rises on its own under pressure is a(n) ____.
26.
2 points
The most prominent features of a narrow, V-shaped valley, where the stream profile drops rapidly, are ____.
27.
2 points
The ability of a stream to erode and transport material depends largely on its ____.
28.
2 points
Base level is ____.