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33 Cards in this Set
- Front
- Back
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The sun heats the Earth through a method known as?
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radiation
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How much of the sun's radiation is absorbed by the Earth's surface?
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50%
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An object moving freely in the Northern Hemisphere is deflected to the right of its intended path. This is called ______.
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coriolis force
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On March 21, (the spring, vernal, equinox), the sun rays are where?
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striking the equator
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Warm steady breezes that blow almost continuously and move toward the equator are called ____ _____.
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trade winds
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The Earth rotates on its axis in what direction in the Northern Hemisphere?
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counterclockwise
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A scale for estimating wind speed, on land or sea
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Beaufort Scale
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the weight of all of the atmosphere's gases and molecules on the Earth's surface.
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Atmospheric pressure
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A body of air in motion is called what?
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wind
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The total energy of all molecules within a substance is ______.
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heat
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Wind direction is defined as the direction from which the wind is blowing (true/false)
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TRUE
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If a flag is blowing fully extended the wind speed would be approximately _____ mph.
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30 mph
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When temperature and wind speed are both used to explain how cold it feels, we are referring to the _____ ______.
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wind chill
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What is the boiling point temperature of Fahrenheit?
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212 degrees
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A microburst is defined as a downdraft or ________.
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downburst
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What pressure instrument gives a permanent record of pressure readings?
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Aneroid barograph
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When a parcel of air holds all the water it can it is called_______.
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saturation
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The temperature at which air becomes saturated is called?
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Dew point
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What are the three basic cloud forms?
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Cumulus, stratus, and cirrus
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Which cloud has a uniform, sheet-like appearance with very little vertical development?
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Stratus
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Moisture in the form of a gas is called?
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water vapor
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Tiny droplets of liquid water in contact with the surface is?
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fog
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The amount of water vapor in the air compared to its water vapor capacity at a given temperature is known as?
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relative humidity
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The lowercase letter m (maritime) in air mass classification means?
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water, high moisture, and wet
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The lowercase letter c (continental) in air mass classification means?
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land (low moisture and dry)
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The four categories of the capital letters in a air mass classification are: P-polar, A-arctic, T-tropical, and E________.
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Equatorial
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What does the two-letter code cA describe for an air mass?
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continental Arctic - dry and cold
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Name the three stages of a thunderstorm.
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Building, maturing, dissipating
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Give the two-letter code for very moist and very warm
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mT
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Give the two-letter code for exceptionally cold, very dry air mass
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cA
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Give the two-letter code for a cool and moist air mass
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mP
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Give the two-letter code for a very warm and dry air mass
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cT
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A boundary between two air masses is called a _______.
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front
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