Ch20

Front 1

oxygen was introduced into the atmosphere as a byproduct of

Back 1

photosynthesis

Front 2

as the electrical energy of lightning is discharged into the air,

Back 2

the air heats and expands rapidly

Front 3

creenhouse gases are added to the atmosphere through

Back 3

forest fires

Front 4

the leading edge of a cold air mass that overtakes a region formerly occupied by a warm air mass is called a

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cold front

Front 5

of all the atmospheric layers the troposhere has the

Back 5

highest density

Front 6

with the input of solar energy water changes from a liquid to a gas during the process of

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evaporation

Front 7

ozone molecules are destroyed by

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chlorofluorocarbons

Front 8

a waste product of respiration in animals that is use by plants to carry out photosynthesis's

Back 8

carbon dioxide

Front 9

the only atmospheric layer containing measurable amounts of water is the

Back 9

troposhere

Front 10

high winds and strong thunderstorms are characteristic of an approaching stron

Back 10

cold front

Front 11

the reion where warm and cold air masses meet is called a

Back 11

front

Front 12

the energy that powers a hurricane is derived from

Back 12

condensation of water vapor

Front 13

unlike climate weather

Back 13

changes from day to day

Front 14

condenstion and the formation of cumulus clouds begins as the rising air reaches its

Back 14

dew point

Front 15

due to the coriolis effect winds in the northern hemisphere

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curve clockwise

Front 16

the boundary betweenthe troposphere and stratosphere is called the

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tropopause

Front 17

weather variables such as wind speed cloud cover and precipitation are indicated on weather maps by

Back 17

symbols

Front 18

warm air rises becuase of its

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low density

Front 19

a cloud type that usually produces prcipitaion is an

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nimbostratus

Front 20

plants contribute large volumes of atmospheric water vapor to the air through the process of

Back 20

transpiration

Front 21

sheet shaped clouds are called

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stratus

Front 22

the climate of region is defined by which two cariables

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temperature and moisture

Front 23

the direction inwhich the wind moves is influenced by

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earths rotation and the pressure gradient

Front 24

the general geographic location of a large low pressure system is

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the tropics

Front 25

theclouds that occur at the highest altitude are usually

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cirrus

Front 26

the region where electrically charged ions are formed as a result of the absorption of solar energy is called

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ionosphere

Front 27

air becomes wind as it flows from

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high pressure to low pressure

Front 28

in a high pressure system

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air molecules are close together and pressing on earths surface

Front 29

in the oxygen carbon dioxide cycle

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animals produce carbon dioxide used by plants for photosynthesis

Front 30

on a weather map winds blow slightly accross isobars

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toward low pressure centers

Front 31

as temperature increases the possible total humidity

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increases

Front 32

the coldest layer of earths atmosphere is the

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mesosphere

Front 33

as distance from earths surface increases the temperature of the stratosphere

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increases

Front 34

the ozone layer is located in the

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stratosphere

Front 35

tornadoes commonly occur in which of the following regions of the united states

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midwest

Front 36

warm moist air will have

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high humility and high dew point

Front 37

historically global climate

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has caried greatly over time

Front 38

almost all weather occurs in the

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troposphere

Front 39

which of the following gases was not believed to be present on earth at the time of its formation 4.4 billion years ago

Back 39

oxygen