Exam 3 Flashcards

(40 cards)

0
Q

In the weathering process of pressure release fracturing

A

Bedrock expands and fractured when the overlying rock erodes away

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1
Q

Wind, flowing water, glaciers, and gravity are agents of

A

Erosion

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2
Q

Piles of rock debris found at the base of cliffs in high alpine areas are likely the result of

A

Frost wedging

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3
Q

In the process of hydrolysis

A

Minerals weather by incorporating water

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4
Q

Soil is a mixture of

A

Mineral grains, organic matter, gas, water

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5
Q

A flowing mixture of clay, silt, sand, and rock in which more than half of the particles are larger Han sans is called

A

Debris flow

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6
Q

A type of mass wasting in which a segment of bedrock moves downslope along a fracture is called

A

Rockslide

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7
Q

What proportion of the earths surface water is fresh water

A

2.5%

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8
Q

Most of the surface fresh water is contained in

A

Ice sheets and glaciers

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9
Q

Stream, -, discharge, and channel shape determine the velocity of a stream

A

Gradient

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10
Q

A streams erosional strength is

A

Greatest in a fast flowing stream

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11
Q

Boulders and cobbles are carried by a stream as

A

Bed load

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12
Q

The water on the outside of a stream curve moves

A

Faster than the water on the inside, thus enforcing meandering of the stream

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13
Q

If a stream cuts through the narrow neck of land separating two meanders, the abandoned meander loops may become isolated to form an

A

Oxbow lake

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14
Q

When a stream has a greater supply of sediment than it can carry

A

It forms a braided stream

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15
Q

The top of a waterfall is a

A

Temporary or local base level

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16
Q

The region from which all the water flows into a river is its

A

Drainage basin

17
Q

High gradient streams are likely to form

A

Vshaped valleys

18
Q

A - is the large scale feature built up of sediment deposited where a steam enters the ocean

19
Q

During a flood, a stream overflows its banks and water covers the adjacent -.

20
Q

A nutrient rich lake is called

A

Eutrophic lake

21
Q

Turnovers in lakes situated in temperate climates typically occur in

A

Spring and fall

22
Q
  • is the proportional volume of to k or soil that consists of open spaces.
23
Q

The region of the crust above the water table that is most, but unsaturated

A

Zone of aeration

24
In a typical aquifer, ground water flows at
A few cm per day
25
Caverns usually form in
Limestone
26
Any process that uses water then returns it to earth far from its source is
Consumption
27
Domestic water use accounts for - % of all water used in the US
10
28
- in ground water forms near the well where water is withdrawn after than it can flow
Cone of depression
29
If too much fresh water is pumped out of a coastal aquifer
Saltwater intrusion can occur
30
An example of non-point source pollution is
Fertilizer over a field
31
Which is w most logical sequence of steps in identifying and treating a contaminated aquifer?
Discovery, elimination, monitoring, modeling, remediation.
32
Rounded ice grains called firm form
If snow survives through 1 summer
33
Alpine glaciers occur
Near mountaintops at high elevations on all continents
34
During basal sliding a glacier moves
On a thin film of water
35
- separates the zone of accumulation from the zone of ablation.
Snow line
36
Sea ice forms
When surface ocean water freezes
37
Glacial - form as rocks are dragged along at the base of a glacier
Striations
38
A smaller glacial valley that meets the main valley with a large vertical offset is called a
Hanging valley
39
- is sediment that was dirt transported by a glacier and then transported and deposited by a stream
Stratified drift