chapter 27.1 and 27.2 Flashcards

(69 cards)

1
Q

is the process that involves the physical or chemical breakdown of materials on earth’s surface

A

weathering

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2
Q

a mixture of weathered rock organic matter water

A

soil

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3
Q

is the removal of surface material through the process of weathering

A

Erosion

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4
Q

As rocks weather erosional agents like water ice wind and gravity move eroded materials from one place to another is called what?

A

sediment transport

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5
Q

when the erosional agent slow down it drops this sediment load in a process called what?

A

deposition

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6
Q

the land area that gathers water for a major river is called a river-

A

drainage basin

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7
Q

the movement of water parallel to the shoreline is called what?

A

longshore current

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8
Q

What is weathering?

A

the process that involves the physical or chemical breakdown of materials on earth’s surface

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9
Q

Do rocks weather at the same rate?

A

they do not

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10
Q

what are the two main factors that determine how fast a rock will weather?

A

depends on
rock types
landscape

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11
Q

what are the two types of weathering?

A

mechanical

chemical

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12
Q

what type of change happens with mechanical weathering?

A

physical change

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13
Q

what type of change happens with chemical weathering?

A

chemical change

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14
Q

what are the 3 specific type of mechanical weathering?

A

frost wedging
biological activity
collision

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15
Q

what cause frost wedging?

A

occurs when water get collected in cracks of rocks then it freezes

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16
Q

what is the cycle called during frost wedging?

A

Freeze Thaw cycles

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17
Q

what cause biological activity?

A

plants and animal

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18
Q

what cause weathering during collision?

A

when rocks fall from a cliff or tumble through turbulent rivers

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19
Q

what are the 2 types of chemical weathering caused by?

A

oxygen

water

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20
Q

what is the chemical process called that is caused by oxygen?

A

oxidation

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21
Q

What is the chemical process called that is caused by water?

A

hydrolysis

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22
Q

what is soil?

A

a mixture of weathering rock organic matter water and air thta ia capable of supporting life

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23
Q

what is parent material?

A

the material from which soil forms are

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24
Q

what are soil horizons?

A

different layers of soil

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25
how many soil horizons are there?
6
26
true or false. All soils contain every soil horizon.
false
27
what are the specific soil horizons?
OAEBCR
28
what does the first soil horizon contain?
organic material
29
what is the second horizon mostly made up of ?
mostly minerals
30
which layer does leaching occur?
E
31
which horizon collects materials from previous horizons?
B
32
which layer is partially weathered bedrock?
C
33
which layer is unweathered bedrock?
R
34
which soil horizons makes up the topsoil?
O and A
35
which soil horizons make up the subsoil?
E and B
36
which soil horizons make up the true soil?
O A E B
37
what is the difference between weathering and erosion ?
weathering is the breakdown of material | erosion is the removal of surface material
38
when the slope of a river decrease what happens to the river speed ?
it also decreases
39
what are small streams called that flow into large rivers?
trinutaries
40
What is the land area called that gathers water for a major river
drainage basin
41
what is the boundary that separates drainage basin?
drainage divide
42
as water flows downhill under the influence of gravity, water erodes earth's surface creating ______
channels
43
what shape do young rivers carve out of the surface due to fast movement?
V-shapes
44
what types of rivers are wide with smooth and gentle slopes
Mature rivers
45
when river flood and drop their sediment load what is created?
Flood plains
46
what is a fan-shape deposit that forms on the mouth of a river?
Deltas
47
what are distributaries ?
branching channels
48
what is formed where the mouth of a river or stream enters dry land?
Alluvial fans-
49
what are the two types of glaciers?
valley glaciers | continental glaciers
50
where do valley glaciers form?
high mountainous regions
51
where do continental glaciers form?
colder climate and occupy large land areas
52
where are the two continental glaciers located?
Greenland and Antarctica
53
what is a cirque?
bowl shaped basins
54
what is an arete?
form where 2 adjacent valley glaciers meet and erode a long sharp ridgeline
55
what is a horn in a mountainous region?
sharpened peaks
56
what shape of valley do valley glaciers form?
u-shaped valleys
57
what are tributary glaciers?
small glaciers that feed into the large glaciers
58
what type of valleys do tributary glaciers form?
hanging valleys
59
on which side of the dune does erosion occur?
windward side
60
on which side does deposition occur?
leeward side
61
what is deflation?
The removal of small particles by wind leaving heavier particles behind
62
when small particles are removed the remaining surface is called?
desert pavement
63
do to wind what does the shape and sizes depends on what?
wind speed amount of time the wind blows sediment supply
64
what are 3 landforms created by wave erosion
coastal cliffs sea stacks sea arches
65
what are 2 landforms created by wave depositon?
sand bar | sand spits
66
what are sand bars
landfroms that are parallel to the shoreline
67
what are sand spits
sandbars that extend into the water
68
what are some things that can trigger mass wasting
snow heavy rains earthquakes human activity
69
mass wasting examples
rock slides mudflows landslides