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Which of the following characteristics is not associated with a well-developed newly formed cP air mass?


A) cold temperatures
B) clear skies
C) high pressure
D) formation in the Southern Hemisphere
E) anticyclonic wind flow

F) A) and E)
G) A) and D)

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How do air masses form? What are their general characteristics? Describe the typical air masses that affect North America.

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An air mass is a volume of air defined b...

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Describe the formation of mesocyclones and tornadoes,and also examines how meteorologists rank the intensity of tornadoes.

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Strong winds aloft establish spinning.Up...

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Which of the following was the deadliest Atlantic hurricane of the last 100 years?


A) Hurricane Mitch
B) Hurricane Bonnie
C) Hurricane Andrew
D) Hurricane Camille
E) Hurricane Katrina

F) C) and D)
G) C) and E)

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Air rising forcibly lifted upslope when it meets a topographic barrier such as a mountain is an example of____ lifting.


A) convergent
B) convectional
C) orographic
D) frontal
E) advective

F) C) and E)
G) A) and E)

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After a cold front passes,the temperature _____and the pressure _____(relative to the conditions that existed prior to the passage of the front) .


A) increases;increases
B) increases;decreases
C) decreases;increases
D) decreases;decreases
E) remains unchanged;decreases

F) C) and D)
G) B) and E)

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C

Air flowing from different directions to an area of low pressure,coming together,and being displaced upward is an example of ____lifting.


A) convergent
B) convectional
C) orographic
D) frontal
E) radiative

F) A) and B)
G) All of the above

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Tropical cyclones


A) are produced by the conflict between air masses and frontal activity.
B) originate entirely within tropical air masses.
C) usually form poleward of 23.5° latitude in either hemisphere.
D) are called hurricanes worldwide.
E) are classified using the Enhanced Fujita scale.

F) None of the above
G) A) and B)

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B

Hurricanes derive their energy from the latent heat of


A) vaporization.
B) fusion.
C) condensation.
D) sublimation.
E) deposition.

F) A) and B)
G) A) and C)

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Which of the following is incorrect?


A) The most severe weather in a hurricane occurs in the spiral bands.
B) By definition,hurricanes have sustained winds that exceed 65 knots (119 kmph or 74 mph) .
C) Mature hurricanes develop a central eye of calm conditions.
D) Tropical cyclones range in diameter from 160 km to 1,000 km (100 mi.to 600 mi. ) .
E) Vertically,a tropical cyclone dominates the full height of the troposphere.

F) B) and E)
G) B) and D)

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The Saffir-Simpson scale estimates potential property damage from


A) hurricanes.
B) tornadoes.
C) tropical depressions.
D) storm surges.
E) wave cyclones.

F) A) and B)
G) A) and E)

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The first stage of a single-cell thunderstorm is the _____ stage in which _____.


A) occluded;a cold front overruns the slower moving warm front
B) mature;downdrafts cause heavy precipitation and strong,gusty winds
C) dissipating;downdrafts pull cooler air into the cloud
D) open;warm air moves northward along an advancing front,while cold air advances southward
E) cumulus;unstable conditions prevail leading to cumulus cloud formation

F) A) and B)
G) A) and E)

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The severity of storm activity along a warm front is _____ that along most cold fronts because the rate of uplift is _____along a warm front.


A) less than;slower
B) less than;faster
C) greater than;slower
D) greater than;faster
E) equal to;equal

F) A) and B)
G) C) and E)

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Which of the following "ingredients" is not associated with thunderstorm formation?


A) warm,moist air
B) unstable air
C) a lifting mechanism
D) a strong high pressure cell
E) strong updrafts of rising air

F) B) and E)
G) D) and E)

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Which of the following is not a regional name for the most powerful tropical cyclones?


A) hurricane
B) easterly wave
C) typhoon
D) cyclone

E) A) and D)
F) C) and D)

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_____clouds are associated with tornado development.


A) Cumulus
B) Nimbostratus
C) Altocumulus
D) Cumulonimbus
E) Cirrus

F) A) and E)
G) A) and D)

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To what extent was Hurricane Katrina a natural disaster? To what extent was it caused by humans?

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The hurricane,itself,was a natural disas...

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Before a hurricane forms,upper-level divergence above an easterly wave


A) weakens vertical convective circulation.
B) pulls moisture into the system.
C) causes the system to dissipate.
D) moves west to east.
E) forms a mesocyclone.

F) A) and E)
G) All of the above

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The wetter,intercepting slope of a mountain is termed the_____ slope,whereas the drier,downwind slope is termed the _____ slope.


A) left side;right side
B) west side;east side
C) windward;leeward
D) leeward;windward
E) wet front;dry front

F) None of the above
G) C) and D)

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A mT air mass is likely to be ____than a cT air mass because the mT air mass _____.


A) wetter;is warmer than the cT air mass
B) wetter;forms over the ocean
C) drier;is a cold air mass
D) drier;forms under the equatorial low
E) hotter;forms over the ocean

F) B) and E)
G) B) and D)

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B

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