Gol111 Chapter 8

Front 1

the most abundant gaseous components of the Earth's atmosphere are:

Back 1

nitrogen and oxygen.

Front 2

the boundary between two air masses is called a(n):

Back 2

front.

Front 3

seasons are caused by

Back 3

the earth's orbital tilt relative to the plane of its orbit around the sun.

Front 4

weather may be defined as

Back 4

short term, localized characteristics of the atmosphere.

Front 5

when air masses come together,

Back 5

one air mass may ride up and over the other and form a front.

Front 6

earth rotates eastward about

Back 6

impossible to say without more imformation

Front 7

the power for tropical cyclones comes from

Back 7

the condensation of warm, moist air.

Front 8

an air mass is a large body of air with nearly uniform temperature, humidity and therefore density throughout. true or false.

Back 8

TRUE

Front 9

according to the atmospheric circulation model developed in the text, air tends to

Back 9

rise at 60º north and fall at 30º north.

Front 10

the coriolis effect causes objects moving in the northern hemisphere to veer off course

Back 10

to the right, or clockwise when viewed from above.

Front 11

tropical cyclones never leave the tropics. true or false

Back 11

false.

Front 12

tropical cyclones tend to move

Back 12

westward and poleward in both hemispheres.

Front 13

when viewed from above, tropical cyclones rotate ________ in the SOUTHERN hemisphere.

Back 13

clockwise.

Front 14

hurricane andrew, the most costly natural disaster to strike the united states, was a violent example of

Back 14

a tropical cyclone

Front 15

extratropical cyclones typically form

Back 15

near the junction between the hadley cells and the ferrel cells.

Front 16

if you were standing on top of a high mid-pacific island at 15º latitude, from which direction would you expect the wind to come?

Back 16

northeast.

Front 17

which of these phenomena causes the LEAST structural damage and loss of life during the passage of a tropical cyclone?

Back 17

low atmospheric pressure.

Front 18

hot air ______, while cool air ______.

Back 18

expands and rises...contracts and sinks.

Front 19

tropical cyclones are also called:

Back 19

(all of these are the same things, with different names.)

Front 20

the meteorological equator

Back 20

all of the above.

Front 21

winds generally move across the united states

Back 21

from west to east.

Front 22

areas of vertical air movement (very little surface wind motion) are found on the Earth at latitudes

Back 22

0º and 30º.

Front 23

the dependable surface winds of the Earth centered at about 15º north and south latitudes are called:

Back 23

the trade winds.

Front 24

there are _____ main wind bands in each hemisphere of the Earth.

Back 24

3.

Front 25

earth is "tilted" at about 23 1/2º relative to its orbital plane around the sun. this causes

Back 25

all of these things.