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physical science > 28.1 > Flashcards

28.1 Flashcards

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1
Q

Troposphere

A

A layer extending an average of 12km above earths surface, where earths weather takes place

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2
Q

temperature inversion

A

occurs when air temperature increases with altitude and the air becomes stable

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3
Q

greenhouse effect

A

A natural process in which certain gases in the atmosphere warm a planet as they absorb and emit infrared radiation

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4
Q

how are the atmospheric layers divided

A

separated based on composition and temperature

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5
Q

what is the majority of the troposphere made up of

A

78% Nitrogen

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6
Q

what is the second most common gas in the tropospere

A

21% oxygen

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7
Q

what is the remaining 1% of gases

A

trace gases, mostly argon

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8
Q

does the temperature increase or decrease within the troposphere

A

it gets colder when going up

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9
Q

how many layers are there in the earths atmosphere

A

5 layers

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10
Q

what are the names of the layers of the atmosphere

A

troposphere, stratosphere, mesosphere, thermosphere, exosphere

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11
Q

which layer is the ozone found

A

stratosphere

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12
Q

in the stratosphere, does temp increase or decrease with altitude

A

its increasing

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13
Q

within the mesosphere, does the temp increase or decrease

A

it decreases

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14
Q

do the last two layers of the atmosphere affect weather

A

no

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15
Q

what percent of of solar radiation is absorbed by earths surface

A

50%

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16
Q

what percent of solar radiation is reflected by earths surface

A

5%

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17
Q

what percent of solar radiation is absorbed by particles in earths atmosphere

A

20%

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18
Q

what percent of solar radiation is reflected back by clouds and other particles

A

25%

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19
Q

what are the three basic cloud types

A

cirrus, cumulus, and stratus

20
Q

what does a stratus cloud looks like

A

layered sheet like clouds

21
Q

what does a cumulus cloud looks like

A

puffy and occur in fair weather

22
Q

what does a cirrus cloud looks like

A

wispy, high altitude clouds

23
Q

what is it called when water from the land goes in the atmosphere and back down in a cycle

A

the water cycle

24
Q

what are the stages of the water cycle

A

evaporation and transpiration, condensation, precipitation, run off or infiltration

25
Q

a narrow band of fast moving wind

A

jet stream

26
Q

apperent deflection of an object due to earths rotation

A

coriolis effect

27
Q

large volume of air with uniform moisture and temperature throughout

A

air mass

28
Q

air masses interact in zones called _______

A

weather fronts

29
Q

is there only one jet stream in the world

A

no, there are four

30
Q

how many pressure systems are there

A

2, a low and high pressure systems

31
Q

what is the low pressure system know as

A

a low (L)

32
Q

which way does the air flow in a low pressure system

A

counterclockwise

33
Q

what are the results of a low pressure system

A

clouds form and precipitation takes place

34
Q

what is a high pressure system also know as`

A

a high (H)

35
Q

which direction does a high pressure system flow

A

clockwise

36
Q

what are some results of a high pressure system

A

the air sinks causing clear skies

37
Q

what are the 4 air fronts

A

cold, warm, stationary, and occluded fronts

38
Q

what happens during a cold front

A

cummulus clouds form

39
Q

what is a cold front represented by on the news

A

blue triangles

40
Q

what happens during a warm front

A

stratus clouds or fog with steady rainfall

41
Q

what would warm front be represented by on the news

A

red half circles

42
Q

what happens with stationary fronts

A

rain for days and

43
Q

what are stationary fronts represented by

A

alternating red half circles and blue triangles

44
Q

thunderstorms and strong wind occurs

A

occluded front

45
Q

what is an occluded front represented by on the news

A

purple alternating triangles and half circles

physical science (10 decks)

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