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Science test Flashcards

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Biology 101 flashcards
1
Q

what is teh typical order of occurrence

A

weaterh erosion depostion

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2
Q

what is foremd when water chemically combines wiith carbon doioxede

A

carbonic acid

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3
Q

______ ____ breaks down rocks by chagning teh compositon of the rocks

A

chemical weathering

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4
Q

carbon dioxide oxygen and water are often involved in chemical weather

A

true

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5
Q

of the conditonsl listed which is the most favorable for chemical weathering dry climate little vegetation or moist climate

A

moist climate

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6
Q

_____ ____ breaks down rocks through a physical process

A

mechanical weathering

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7
Q

when water enters a crack in a rock expns as it freezzes and cracks the rock what has occured

A

frost wedging

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8
Q

________ is a process wherevby thin sheets or layers of rock flake off lareger rocks often shaping theme ito rounded outcroppings or boulders

A

exfoliation

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9
Q

_______ breaks down rocks through the action of plants and animals

A

biological weatehreing

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10
Q

which of these is always involved in mass wasting gravity water wind waves

A

gravity

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11
Q

the downhill movement of lareg quantities of rocks an ssoil due to gravity is called

A

mass wasting

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12
Q

a type of mass wasting that slips just a short distance is ______

A

a slump

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13
Q

what is the process of wearing awyay rock and transporting sedimetns

A

erosion

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14
Q

what is the rapid moveent of allarge mass of any type of earth materials down a steep slope

A

landslide

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15
Q

a winter avalanche is not considered mass wasting because it involves only ice and snow

A

false

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16
Q

the size of boulders and rocks that can be carried by a stream i;s detemined by the volume of flowing water wider streams can carry larger rokcs and boulders

A

false

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17
Q

what is the motion of lareger sedimetn particles hopping along a stream bed

A

saltatation

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18
Q

most of the sediment load i a stream is carried as _____ ____

A

suspended sedimetns

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19
Q

an alluvial fan is like a river delta on land

A

true

20
Q

the formation of a delta is most closely realted to the process of what

A

depostion

21
Q

what is teh process of forming desert pavements by wind erosion

A

deflation

22
Q

deflation is to desert pavemtsn a s ____ is to ventifacts

A

abrasion

23
Q

what is a hill or ridge or windblown snadn q

A

sand dune

24
Q

loess depostis are thought to have been formed by the action of what

A

wind

25
Q

when two or more glaciers merge ad spread out onto a plain at the base of a mountain ragne it is called a what

A

valley glaciers

26
Q

some galciers can be found near the equator but only in high mountains

A

ture

27
Q

a rock glacier is basiclally a standard galcier that contains more rock than ice

A

true

28
Q

a _______________ is a large mass of ice consisting mostly of recrystalied snow tha tmoves under the influence of gravity

A

glacier

29
Q

what is teh most common galcier foroming high up in the moutnaisn

A

valley galcier

30
Q

sudden glacier movement is called a ____ ___

A

glaciel surge

31
Q

what is a bowl like depression left by a melte glacier often filled with water forming a small lake called

A

cirques

32
Q

what is a galciated valley that ocean water has entered

A

fjord

33
Q

what are any depostis of sedimetns left by a galcier called

A

glaciel drift

34
Q

rock materials that eventually pile up along the sides of a galcier form fjords

A

false

35
Q

waht is a ridge of till depostied by a galcier

A

morains

36
Q

ong streamlined hills composed of unsorted glacial till are called

A

drumlins

37
Q

what is teh name for the depression in the round moraine that remains when a block of glacie ice melts

A

kettle

38
Q

what is a winding ridge of sorted sedimetns deposited by a metlwater stream flowing benath a glacier

A

eskers

39
Q

thin bands of sediemtn formed on the bottomes of lakes that are fed by galcial meltwater are referred to as what

A

varves

40
Q

counting varves is arelibale method of dating glacial lake sedimetns

A

false

41
Q

in a few limited places in the world the orignal created soils can still be found

A

false

42
Q

what is the layer of soil resulting from the weatrering of bedrock

A

hroizon

43
Q

any fertile soil must contain what

A

organic material

44
Q

is a valubale topsoil containeing equal parts sand and silt with about half as mushc clay

A

loam

45
Q

soil in rainy climates tend sto be acidic

A

true

46
Q

plucking is atype of erosion caused by whta

A

glacier

Science (44 decks)

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