Exam 3 Flashcards

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

A

Delta

19
Q

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

A

Flood plain

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.
A

Porosity

23
Q

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

A

Zone of aeration

24
Q

In a typical aquifer, ground water flows at

A

A few cm per day

25
Q

Caverns usually form in

A

Limestone

26
Q

Any process that uses water then returns it to earth far from its source is

A

Consumption

27
Q

Domestic water use accounts for - % of all water used in the US

A

10

28
Q
  • in ground water forms near the well where water is withdrawn after than it can flow
A

Cone of depression

29
Q

If too much fresh water is pumped out of a coastal aquifer

A

Saltwater intrusion can occur

30
Q

An example of non-point source pollution is

A

Fertilizer over a field

31
Q

Which is w most logical sequence of steps in identifying and treating a contaminated aquifer?

A

Discovery, elimination, monitoring, modeling, remediation.

32
Q

Rounded ice grains called firm form

A

If snow survives through 1 summer

33
Q

Alpine glaciers occur

A

Near mountaintops at high elevations on all continents

34
Q

During basal sliding a glacier moves

A

On a thin film of water

35
Q
  • separates the zone of accumulation from the zone of ablation.
A

Snow line

36
Q

Sea ice forms

A

When surface ocean water freezes

37
Q

Glacial - form as rocks are dragged along at the base of a glacier

A

Striations

38
Q

A smaller glacial valley that meets the main valley with a large vertical offset is called a

A

Hanging valley

39
Q
  • is sediment that was dirt transported by a glacier and then transported and deposited by a stream
A

Stratified drift