10.4-11.2 Flashcards

1
Q

Is the process by which rocks are broken into smaller fragments or particles

A

Weathering

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2
Q

What are the two types of weathering?

A

●Physical weathering
●Chemical weathering

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3
Q

It is the disintegration of rocks and minerals by physical or mechanical means

A

physical weathering

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4
Q

It is the chemical alteration of decomposition of rocks and minerals

A

Chemical weathering

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5
Q

It occurs entirely on Earth’s surface

A

Physical weathering

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6
Q

It occurs on Earth’s surface as a result of ________, ______, or ________

A

●exposure to temperature
●weather
●wedging action

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7
Q

Are cracks or brittle fractures in rocks

A

joints

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8
Q

lt causes rocks to break

A

contraction and expansion

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9
Q

It may cause expansion and eventually causes rocks to break

A

sudden exposure to high temperature

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10
Q

These are a usual occurrence brought about by the growth of roots of big trees

A

Cracked pavement or sidewalks

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11
Q

What are the common types of chemical weathering

A

●Hydrolosis
●Oxidation
●Complete dissolution or carbonation

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12
Q

It is when rocks react with the hydrogen in water

A

Hydrolosis

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13
Q

Hydrolosis is most common in _______ and ________ rocks

A

●Igneous
●Metamorphic

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14
Q

It is caused by the abundance of free oxygen at the surface, which may react with minerals

A

Oxidation

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15
Q

Are examples of rocks that result from oxidation

A

●Hematite
●Limonite
●Geothite

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16
Q

It occurs when minerals in rocks are dissolved by water

A

complete dissolution

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17
Q

Is a weak acid that forms when carbon dioxide mixes with water

A

carbonic acid

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18
Q

It is formed by the weathering of rocks by various factors

A

soil

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19
Q

what are the various factors of weathering to form soil

A

●rain
●sunlight
●heat
●freezing
●thawing of water

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20
Q

How many years does it take to form an inch of topsoil

A

500 years

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21
Q

soil is made up of?

A

●minerals
●organic materials
●air
●water
●living organisms

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22
Q

It is produced when a layer parallel to the soil surface shares similar characteristics

A

soil horizon

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23
Q

what are the similar characteristics needed to produce soil horizon

A

●physical characteristics
●chemical characteristics
●biological characteristics

24
Q

it remains as an environmental concern

A

soil erosion

25
Q

It resulted in severe loss of topsoil

A

improper land use

26
Q

it is a barrier made of trees

A

windbreak

27
Q

soil erosion may be prevented by using:

A

●filling and cropping practices
●use of windbreaks
●application cropping techniques

28
Q

most living creatures interact with the atmosphere for their ________, _______, and ___________

A

●metabolism
●reproduction
●migration

29
Q

it transports energy and water over the face of Earth

A

atmosphere

30
Q

the atmosphere shields us from?

A

●harmful ultraviolet radiation
●bombardment of meteors
●meteorites

31
Q

it prevents extreme temperature

A

atmosphere

32
Q

the atmosphere has made the earth _______ warmer than the moon’s

A

33°C

33
Q

is the product of several influences, including the ______
(2 ans.)

A

earth’s atmosphere
nebular cloud

34
Q

volcanoes spewed large amounts of?

A

●water vapor
●carbon dioxide
●hydrogen
●nitrogen
●methane

35
Q

they comprise the bigger portion of the earth’s present atmosphere

A

nitrogen and oxygen

36
Q

it comes from the breakdown of radioactive potassium

A

argon

37
Q

these gases shate common properties such as

A

●low density
●compressibility
●low solubility in water at high temperature
●diffusivity

38
Q

it is the force per unit area exerted on you

A

air pressure

39
Q

atmospheric pressure is important for two reasons

A

●it counterbalances the pressure inside an organism
●air pressure also controls the temperature

40
Q

it is when vapor pressure of the liquid equals the atmospheric pressure

A

liquid boil

41
Q

it can tell us the kind of weather to expect

A

air pressure

42
Q

changes in atmospheric pressure causes

A

●winds
●storms
●typhoons

43
Q

it measures air pressure

A

barometer

44
Q

atmospheric pressure is expressed in

A

millibars (mb)

45
Q

one atmospheric pressure is equivalent to

A

760 mm Hg or 30 inches of mercury

46
Q

an avarage peron inhales how mucn L

A

20 000 L

47
Q

the atmosphere is divided into four distinct layers

A

●troposphere
●stratosphere
●mesosphere
●thermosphere

48
Q

which layer do we live in?

A

troposphere

49
Q

troposphere extends about how much km

A

14-18 km

50
Q

in this layer air is denser

A

troposphere

51
Q

what occurs in the troposphere

A

clouds and storms

52
Q

fast-moving river of air called

A

jet stream

53
Q

the jet stream was discovered by

A

world war II pilots

54
Q

it serves as the boundary between the troposphere and the next layer

A

tropopause

55
Q

how many km above earth is the stratosphere?

A

50 km