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ch3voc DC
ch3 voc DC
31
Geography
9th Grade
09/10/2012

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Term
weather
Definition
THE CONDITION OF THE ATMOSPHERE AT A GIVEN PLACE AND TIME
Term
climate
Definition
weather conditions in an area averaged over a long period of time.
Term
temperature
Definition
the measure of heat in the atmosphere.
Term
Greenhouse effect
Definition
the process of sunlight being changed into heat energy and then being trapped on the earths surface by the atmosphere.
Term
air pressure
Definition
the measurement of the force exerted by air.
Term
prevailing wind
Definition
persistent winds that blow from the same direction.
Term
trade winds
Definition
winds that blow from the Subtropical high pressure zones to the Equatorial low pressure zone.
Term
Doldrums
Definition
the calm area with no prevailing winds along the Equator.
Term
Westerlies
Definition
West to East winds that blow from the Subtropical high pressure zones to the Sub-polar low pressure zones.
Term
front
Definition
when two air masses with very different temperatures and amounts of moisture meet.
Term
evaporation
Definition
the process by which water changes from a liquid to a gas.
Term
wet lands
Definition
land areas that become flooded for at least part of the year
Term
humidity
Definition
the amount of water vapor in the air.
Term
headwaters
Definition
the first and smallest streams to form from the runoff from hills and mountains
Term
condensation
Definition
process by which water changes from a gas to a liquid
Term
precipitation
Definition
water droplets that fall from the sky.
Term
tributary
Definition
small stream or river that flows into a larger stream or river
Term
four forms of Precipation
Definition
rain, sleet, snow, hail.
Term
hurricane
Definition
violent, revolving tropical storms that form over warm ocean waters.
Term
typhoon
Definition
same as hurricane.
Term
aquifer
Definition
where ground water flows between the rock layers
Term
3/4 (75%)
Definition
What percent of the earth's surface is covered with water?
Term
irragation
Definition
the watering of land through pipes, ditches and canals
Term
tornado
Definition
storms in the form of small, twisting, spirals of air.
Term
estuaries
Definition
where a river meets an inlet of the sea
Term
evaporation, condensation and precipitation
Definition
3 main steps in hydrologic cycle
Term
elevation
Definition
height on the earths surface above or below sea level.
Term
70%
Definition
How much of our body is made up of water?
Term
hydroelectricty
Definition
a source of power produced when water is stored behind dams and drives engines
Term
monsoon
Definition
a wind system in which winds completely reverse directions and bring wet and dry seasons.
Term
permafrost
Definition
the condition of frozen water that remains frozen throughout the year.
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