Meteorology Exam

Front 1

The primary source for the earth's atmosphere

Back 1

The sun

Front 2

The most abundant gases in the earth's atmosphere by volume are

Back 2

nitrogen and oxygen

Front 3

The most abundant greenhouse gas in the earth's atmosphere is

Back 3

water vapor

Front 4

ozone in the stratosphere

Back 4

protects life from harmful ultraviolet radiations

Front 5

without the atmospheric greenhouse effect, the average surface temperature would be

Back 5

lower than at present

Front 6

the greenhouse effect is produced mainly by the

Back 6

absorption and re-emission of infrared radiation by the atmosphere

Front 7

Two objects have the same temperature. Object A feels colder to the touch than object B. This is probably because the two objects have different

Back 7

thermal conductivities

Front 8

The percentage of water vapor present in the air compared to that required for saturation is the

Back 8

relative humidity

Front 9

Clouds that have a characteristic lens-shaped appearance referred to as (a)

Back 9

lenticular

Front 10

most thunderstorms do not extend very far into the stratosphere because the air in the stratosphere is

Back 10

stable

Front 11

Which set of conditions , working together, will make the atmosphere the most stable

Back 11

cool the surface and warm the air aloft

Front 12

If a parcel of unsaturated air with temperature 30 degrees celcius rises from the surface to an altitude of 1,000m the unsaturated parcel of temperature at this altitude would be about

Back 12

10 degrees celcius warmer than at the surface

Front 13

On an isobaric surface

Back 13

pressure is constant

Front 14

The amount of pressure change that occurs over a given horizontal distance is called

Back 14

pressure gradient

Front 15

If the earth stopped rotating which of the following would NOT be true

Back 15

There would still be a coriolis effect

Front 16

Thunder is caused by

Back 16

The rapid heating of air surrounding a lightning channel

Front 17

It is now known that, overall clouds

Back 17

have a net cooling effect on the climate

Front 18

about 97% of all ozone in the atmosphere is found in the

Back 18

stratosphere

Front 19

In the middle latitudes of the Northern Hemisphere, surface winds tent to blow _____ and _____ around an area of surface low pressure

Back 19

Counterclockwise; inward

Front 20

If the amount of energy lost by the earth to space each year were not approximately equal to that received

Back 20

the atmosphere's average temperature would change

Front 21

as the air temperature increases, with no addition of water vapor to the air, the dew point will:

Back 21

remain the same

Front 22

The cooling of the ground to produce dew is mainly the result of

Back 22

Radiation cooling

Front 23

The sem-permanent pressure systems associated with the polar front are called

Back 23

subpolar lows

Front 24

which latitudes belt best describes the middle latitudes

Back 24

10 degrees to 35 degrees

Front 25

fog that forms off he coast of Newfoundland is mainly a form of

Back 25

advection fog

Front 26

which two clouds can produce precipitation

Back 26

cumulonimbus, nimbostratus

Front 27

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the

Back 27

environmental lapse rate

Front 28

the hottest atmospheric layer is the

Back 28

thermosphere

Front 29

on a weather map, sharp changes in temperature, humidity, and wind direction are marked by

Back 29

a front

Front 30

the coldest of all air masses is

Back 30

cA

Front 31

The most abundant gas in the stratosphere is

Back 31

Nitrogen

Front 32

detached clouds of delicate and fibrous appearance, without shading, usually in white colour and silky appearance are

Back 32

cirrus

Front 33

upslope fog form because air ___ as it flows up a hill or mountain range

Back 33

warms adiabatically

Front 34

on a weather map ridges are

Back 34

elongated high pressure areas

Front 35

a wind vane that usually consists of tree or more cups

Back 35

anemometer

Front 36

What type of air mas would be responsible for hot muggy summer in the Eastern half of the United States

Back 36

mT

Front 37

on a weather map the transition zone between two air masses with sharply contrasting properties is marked by

Back 37

a front

Front 38

which of the following is NOT considered a temperature scale?

Back 38

calorie

Front 39

In clear weather, the air next to the ground is usually ____ than the air above during the night and____ than the air above during the day

Back 39

colder; warmer

Front 40

which of the following instruments measures pressure?

Back 40

barometer

Front 41

The rate of the earth's rotation determines the strength of the

Back 41

Coriolis effect

Front 42

If an air parcel is completely at rest, which of the following forces make the parcel begin to move?

Back 42

Pressure gradient

Front 43

The temperature scale where 0 degrees represent freezing and 100 degrees boiling is called

Back 43

Celcius

Front 44

The strongest radiation inversion occurs when

Back 44

skies are clear

Front 45

The vertical motion of air caused by the heating of the ground is called

Back 45

convection