Which one of the following is the most abundant gas in the atmosphere?
A. oxygen
B. argon
C. carbon dioxide
D. nitrogen
A. oxygen
B. argon
C. carbon dioxide
D. nitrogen
The tropopause is the boundary between _______
The troposhpere and the stratosphere
Ozone filters out most of the ______ radiation in sunlight.
ultraviolet
Ozone is concentrated in the _____
Stratosphere
Practically all clouds and storms occur in this layer of the atmosphere ______
troposphere
The storage of heat in the lower layer of the atmosphere produced by certain heat absorbing gases is called the ______.
greenhouse effect
Which one of the following statements is true about the equinoxes?
days and nights are equal in length everywhere
Earth receives energy from the Sun in this way
radiation
The transfer of heat through matter by molecular activity is ______
conduction
The two most important heat absorbing gases in the lower atmosphere are ____
water vapor and carbon dioxide
The cloud form that is best described as sheets or layers that cover much or all of the sky is termed _____.
stratus
The cloud form that consists of globular cloud masses that take on a billowy or "cauliflower-like" structure is called ______
cumulus
High clouds that form delicate veil-like patches or extended wispy fibers are termed ______
cirrus
Thunder and lightning are associated with these clouds
cumulonimbus
This fog forms in valleys at night
radiation fog
We are likely to have our highest relative humidity ______
about sunrise
The dew point is the temperature at which ______
water vapor condenses to a liquid
T or F:
The capacity of air to "hold" water vapor is temperature dependent.
True
T or F:
When air sinks, it compresses and warms
True
T or F:
When air is cooled to its dew point, the relative humidity is 80%
False.
T or F:
When unstable air is forced to rise, towering clouds and stormy conditions are expected
True
Lines on a weather map connecting places of equal air pressure are called ____
isobars
Closely spaced isobars often indiciate _____
high winds
The Coriolis effect influences ____
only wind direction
Upper air winds _______
are generally faster than surface winds
High air pressure systems are usually associated with ____
A. diverging winds
B. descending air
C. Clear weather
D. all of these
A. diverging winds
B. descending air
C. Clear weather
D. all of these
Low air pressure systems are usually associated with ______
precipitation
If "fair" weather were approaching, the pressure tendency would probably be ______
rising
If stormy weather were approaching, the pressure tendency would probably be _____
falling
Most of the US is situated in whichzone of prevailing winds?
westerlies
A Santa Ana (or Chinook or Foehn) Wind is a _______
very dry, warm wind flowing down a mountain slope
A sea breeze usually orignates during the ___________
day and flows toward the land
Fast moving curents of air found near the top of the troposphere are called ____
jet streams
On a weather map, _____ fronts are shown by a line with triangular points on one side.
cold
On a weather map, _____ fronts are shown by a line with semicircles extending from one side.
warm
A wind shift from south or southwest to northwest is comonly associated with the passage of a _____ front.
cold
Which of the following is considered to be a boundary between two different air masses?
both warm front and cold front
Which one of the following statements is NOT true of tornadoes?
usually occur along the warm front of a mid-latitude cyclone
Typhoon is another name for a ______
hurricane
When a hurricane moves onto land, it rapidly loses its punch; that is, the storm declines in intensity. Which of the factors listed below contribute to this loss of punch?
A. friction
B. lack of warm, moist air
C. heating from below by the land surface
D. Both A and B
A. friction
B. lack of warm, moist air
C. heating from below by the land surface
D. Both A and B
The precipitation associated with a warm front typically arrives _____ the actual frontal boundary
considerably ahead of
T or F:
Warm fronts generally have steeper slopes than cold fronts.
False
T or F:
Precipitation associated with a cold fron is usually more intense and shorter in duration that precipitation generated by a warm front.
True
T or F:
Thunder is produced by lightning
True
T or F:
A tornado watch is issed by the National Weather Service after a tornado has been sighted in an area.
