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nhf,t
20
Environmental Studies
9th Grade
02/19/2013

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Term
if the water constant, lowering air temperature causes what?
Definition
an increase in relative humidity,and raising air temperature causes a decrease in relative humidity.
Term
what is true about warm, saturated air?
Definition
warm saturated air has more water vapor than cold air.
Term
compared to clouds,fogs are?
Definition
fog is a cloud with it's base at or near the ground.
Term
air that has reached it's water vapor capacity is said to be?
Definition
saturated
Term
hurricanes form in tropical waters between the latitude of what?
Definition
5 and 20 degrees north and south latitude.
Term
what type of front forms when the surface position of the front does not moves?
Definition
stationary front.
Term
the process of converting a liquid to a gas is known as?
Definition
evaporation
Term
the boundary that separate different air mass is called what?
Definition
front
Term
what is the first sign of an approaching warm front?
Definition
the appearance of cirrus clouds
Term
what kind of shape is associated with a middle-latitude cyclone.
Definition
wave shape.
Term
what is dry adiabatic rate?
Definition
rate of cooling or heating in unsaturated air.
Term
a low cloud that blanket the sky and often generates precipition is called?
Definition
Nimbostratus.
Term
which term is used to describe clouds of middle height?
Definition
Alto.
Term
the process by which water vapor changes directly into a solid is called?
Definition
deposition.
Term
an immense body of air characterized by similar properties at any given altitude is known as?
Definition
air mass.
Term
which of the following refers to the temp to which air would have to be cooled to reach saturation?
Definition
dew point
Term
water vapor makes up what fraction of atmospheric gases?
Definition
0 to 4 percent.
Term
which gas is the most important for understanding atmospheric processes?
Definition
water vapor
Term
the ratio of air water vapor content to it capacity to hold water vapor at the same temperature is?
Definition
relative humidity
Term
which of the following refers to the energy that is stored or released during a change of the state of water
Definition
latent heat
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