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18 and 20 test
18 and 20 study guide
39
Environmental Studies
9th Grade
02/21/2013

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Cards

Term
Rain, snow, sleet and hail are all examples of?
Definition
Precipitation
Term
Which term describes the conversion of a solid directly to a gas, without passing through the liquid state?
Definition
Sublimation
Term
The change of state from a gas to a liquid is called?
Definition
Condensation
Term
Air that is reached its water-vapor capacity is said to be?
Definition
Saturated
Term
Which of the following is NOT a process that lifts air?
Definition
Divergence
Term
Orographic lifting is associated with?
Definition
Mountains
Term
Which cloud type consist of globular cloud masses with a cauliflower structure?
Definition
Cumulus
Term
Which term is used to described clouds of middle height?
Definition
Alto
Term
Which clouds are often associated with thunder and lightning?
Definition
Cumulonimbus
Term
Which type of precipitation consist of small clear to translucent ice particles?
Definition
Sleet
Term
What type of cloud is associated with hail ?
Definition
Cumulonimbus
Term
Maritime air masses form?
Definition
Over water
Term
Which air masses have the greatest effect on weather conditions in much of the United States?
Definition
cP and mT
Term
The boundary that separates different air masses is called an ?
Definition
Front
Term
The weather behind a cold front is dominated by which of the following
Definition
Cold air mass
Term
Which gas is most important for understanding atmosphere processes?
Definition
Water Vapor
Term
The process by which water vapor changes directly to a solid is called?
Definition
Deposition
Term
The ratio of air's water-vapor content to its capacity to hold water vapor at that same temperature is the?
Definition
Relative humidity
Term
Which cloud type is best described as sheets or layers that cover much or all of the sky?
Definition
Stratus
Term
Which cloud is confined to the middle height range?
Definition
Altostratus
Term
Compared to clouds, fogs are ?
Definition
At lower altitudes
Term
Which of the following processes can produce either rain or snow?
Definition
The Bergeron process
Term
An immense body of air characterized by similar properties at any given altitude is known as an ?
Definition
Air mass
Term
Which two properties characterized an air mass?
Definition
Temperature and moisture
Term
Which type of air mass originates in northern Canada
Definition
cP
Term
An mT air mass is best described as?
Definition
Warm an wet
Term
A cT air mass is ?
Definition
Hot and dry
Term
In figure 20-1 which of the following is characteristc of the air mass labeled F
Definition
Hot and wet hot in summer
Term
What type of front forms when the surface position of the front does not move?
Definition
Stationary
Term
When an active cold front overtakes a warm front,
Definition
warmer,less dense air
Term
What type of front usually produces several hours of light to moderate precipitation
Definition
Warm front
Term
The greatest number of thunderstorms occur in the ...?
Definition
Tropics
Term
Tornadoes are most frequent from?
Definition
April till june
Term
Hurricanes are classified according to intensity using the ..?
Definition
Saffir-simson scale
Term
Typhoon is another name for?
Definition
Hurricanes
Term
What scale is used to measure tornado intensity
Definition
Fugita tornado intensity scale
Term
What is a hurricane?
Definition
A whirling cyclone that produce winds of at least 119 kilometers/hour
Term
What is a storm surge?
Definition
It is a dome of water about 60 to 80 km wide that sweeps across the coast where hurricanes move onto land
Term
What is relative humidity?
Definition
Id the ratio of the airs actual water vapor content compared with the amount of water vapor air can hold at the temperature and pressure
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