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Exam 2 Moisture and Precipitation - Flashcards

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Class:EASC 101 - EARTH SCIENCE I
Subject:Earth Science
University:Southeastern Louisiana University
Term:Fall 2011
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supercooled water water which is still liquid at temperatures below 0 degrees Celsius
4 percent the amount of water vapor in the air (by volume) usually does not exceed:
heating or cooling of the ground the lapse rate of an air layer next to the ground is strongly influenced by:
latent heat is released inside a parcel of rising saturated air

the moist adiabatic rate is different from the dry adiabatic rate because:

 

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decrease during a clear, relatively calm day, the relative humidity will tend to ______ from sunrise to early afternoon
a rise in temperature will cause condensation a false statement concerning when the dry and wet bulb temperatures measured by a psychrometer are equal
condensation nuclei salt, dust particles, silver iodide, and combustion by-products are all examples of :
which is rising or sinking adiabatic processes are only important for air
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temperatures are coolest in the grass the most common reason why dew forms on the grass at night is that
evaporation, condensation the two changes of state that are the most important part of the water cycle for the atmosphere would be:
expanded to a larger volume during the process of adiabatic cooling, the temperature decreases because the air has:
cumulonimbus thunder and lightning are associated with the ____ cloud
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helps the cloud to rise higher the heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud
drops rapidly the atmosphere is most unstable when the temperature of air ______with height.
It expands Why does a rising air parcel cool off?
cumulonimbus clouds hair is most commonly associated with:
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temperature of the air the property which primarily controls how much water can be present as a gas is:
increases with an increase in temperature the capacity of air to hold water vapor
cumulonimbus It is raining on only one side of your street.  The cloud above you is:
warming temperatures sinking or subsiding air cannot form clouds due to the
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electrical charges on the droplets the formation of rain drops by collision and coalescense of smaller cloud droplets is strongly influenced by
sibsidence of an air column What will NOT cuase air to become more unstable?
warm the surface and cool the air aloft these two conditions, working together, will make the atmosphere the most unstable:
collision and coalescense The raindrops that fall to Earth from a warm cloud contain about 1 million times the water in a typical cloud droplet.  This growth from cloud droplet to raindrop occurs mainly because of:
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decreases the temperature of rising air parcels______as they move upward.
rising and expanding the most common way for air to be cooled in order that a cloud may form is by:
cloud formation releases latent heat to the air Why do clouds represent a source of heat for the atmosphere?
the Bergeron process Most of the precipitation that falls in the middle latitudes is formed by:
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the saturation vapor pressure is lower near ice crystals than it is near supercooled droplets The Bergeron process causes cloud droplets to grow because:
condensation As the temperature of air is reduced to its dew point, which of these is most likely to occur?
cumulonimbus You are flying in an airplane at 36,000 ft above sea level.  You see lightning outside of your plane window.  The cloud that is close by is:
wind causes snow to vary in depth across the surface Snowfall depths can be difficult to measure because:
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upper air is warm and surface air is cold Freezing rain (ice storms) or sleet occurs when:
heat exchanged with the surroundings is 0 An adiabatic process is one in which the:
vertical motions are resisted a stable atmosphere is one in which:
Hygroscopic nuclei can allow cloud droplets to form even if the relative humidity is less than 100%
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divergence An example of something that is NOT a lifting mechanism
condensation the process by which a cloud droplet first forms is
changes in heating or cooling of the surface the stability of the air layer close to the earth's surface can vary markedly.  Much of this variation is caused by:
convection the vertical motions that occur when the air is unstable are termed:
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condensation nuclei the cloud droplets in a cloud are formed by water vapor molecules and:
nearness to saturation for the air relative humidity indicates the:
forces the air to rise a convergence of winds near the surface is associated with cloud production because it:
is released to the nearby air when water vapor condenses, the heat involved:
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temperature relative humidity depends of the water vapor present in the air and the:
afternoon thundershowers which of the following would not be associated with stable atmospheric conditions?
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 supercooled waterwater which is still liquid at temperatures below 0 degrees Celsius
 4 percentthe amount of water vapor in the air (by volume) usually does not exceed:
 heating or cooling of the groundthe lapse rate of an air layer next to the ground is strongly influenced by:
 latent heat is released inside a parcel of rising saturated air

the moist adiabatic rate is different from the dry adiabatic rate because:

 

 decreaseduring a clear, relatively calm day, the relative humidity will tend to ______ from sunrise to early afternoon
 a rise in temperature will cause condensationa false statement concerning when the dry and wet bulb temperatures measured by a psychrometer are equal
 condensation nucleisalt, dust particles, silver iodide, and combustion by-products are all examples of :
 which is rising or sinkingadiabatic processes are only important for air
 temperatures are coolest in the grassthe most common reason why dew forms on the grass at night is that
 evaporation, condensationthe two changes of state that are the most important part of the water cycle for the atmosphere would be:
 expanded to a larger volumeduring the process of adiabatic cooling, the temperature decreases because the air has:
 cumulonimbusthunder and lightning are associated with the ____ cloud
 helps the cloud to rise higherthe heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud
 drops rapidlythe atmosphere is most unstable when the temperature of air ______with height.
 It expandsWhy does a rising air parcel cool off?
 cumulonimbus cloudshair is most commonly associated with:
 temperature of the airthe property which primarily controls how much water can be present as a gas is:
 increases with an increase in temperaturethe capacity of air to hold water vapor
 cumulonimbusIt is raining on only one side of your street.  The cloud above you is:
 warming temperaturessinking or subsiding air cannot form clouds due to the
 electrical charges on the dropletsthe formation of rain drops by collision and coalescense of smaller cloud droplets is strongly influenced by
 sibsidence of an air columnWhat will NOT cuase air to become more unstable?
 warm the surface and cool the air aloftthese two conditions, working together, will make the atmosphere the most unstable:
 collision and coalescenseThe raindrops that fall to Earth from a warm cloud contain about 1 million times the water in a typical cloud droplet.  This growth from cloud droplet to raindrop occurs mainly because of:
 decreasesthe temperature of rising air parcels______as they move upward.
 rising and expandingthe most common way for air to be cooled in order that a cloud may form is by:
 cloud formation releases latent heat to the airWhy do clouds represent a source of heat for the atmosphere?
 the Bergeron processMost of the precipitation that falls in the middle latitudes is formed by:
 the saturation vapor pressure is lower near ice crystals than it is near supercooled dropletsThe Bergeron process causes cloud droplets to grow because:
 condensationAs the temperature of air is reduced to its dew point, which of these is most likely to occur?
 cumulonimbusYou are flying in an airplane at 36,000 ft above sea level.  You see lightning outside of your plane window.  The cloud that is close by is:
 wind causes snow to vary in depth across the surfaceSnowfall depths can be difficult to measure because:
 upper air is warm and surface air is coldFreezing rain (ice storms) or sleet occurs when:
 heat exchanged with the surroundings is 0An adiabatic process is one in which the:
 vertical motions are resisteda stable atmosphere is one in which:
 Hygroscopic nucleican allow cloud droplets to form even if the relative humidity is less than 100%
 divergenceAn example of something that is NOT a lifting mechanism
 condensationthe process by which a cloud droplet first forms is
 changes in heating or cooling of the surfacethe stability of the air layer close to the earth's surface can vary markedly.  Much of this variation is caused by:
 convectionthe vertical motions that occur when the air is unstable are termed:
 condensation nucleithe cloud droplets in a cloud are formed by water vapor molecules and:
 nearness to saturation for the airrelative humidity indicates the:
 forces the air to risea convergence of winds near the surface is associated with cloud production because it:
 is released to the nearby airwhen water vapor condenses, the heat involved:
 temperaturerelative humidity depends of the water vapor present in the air and the:
 afternoon thundershowerswhich of the following would not be associated with stable atmospheric conditions?
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