The Test on Weather and Climate consists of 20 questions. Correct answers will be provided after your answers have been submitted.

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1		The principal source of water vapor in the earth's hydrologic cycle is
			A)	the ocean.
			B)	lakes, rivers, and soil.
			C)	plants and animals.
			D)	burning of wood, fossil fuels, and crop residue.
2		Which cloud shape usually occurs when a parcel of air is moved upward in an unstable atmosphere?
			A)	cirrus
			B)	stratus
			C)	cumulus
			D)	fogus
3		A parcel of dry air is moved upward for a distance of 100 m, so it
			A)	warms 1 degree C.
			B)	cools 1 degree C.
			C)	cools 0.65 degree C.
			D)	warms 0.65 degree C.
4		Dry air expands and cools as it is moved upward in an unstable atmosphere. When the temperature reaches the dew point the rate of movement will
			A)	decrease.
			B)	reverse directions.
			C)	increase.
			D)	go to zero.
5		An adiabatic air temperature change is associated with
			A)	the loss or gain of radiant energy.
			B)	rising or descending air.
			C)	density differences.
			D)	mixing of warm and cool air.
6		Showers or thunderstorms are usually associated with which type of cloud?
			A)	stratus
			B)	cirrus
			C)	cumulus
			D)	any of the above
7		Which kind of cloud does not produce any precipitation of any kind?
			A)	cirrus
			B)	cumulus
			C)	stratus
			D)	none of the above
8		An air mass is created when a large body of air
			A)	moves over land from the ocean.
			B)	remains over land or water for a long time.
			C)	moves over the ocean from land.
			D)	moves back and forth over land and water.
9		Which if the following air masses would most likely be dry and warm?
			A)	maritime tropical
			B)	continental tropical
			C)	continental polar
			D)	maritime polar
10		A cold front is the boundary between
			A)	the southward edge of a cold air mass.
			B)	the northward edge of a warm air mass.
			C)	a moving warm air mass and a cooler air mass.
			D)	a moving cold air mass and a warmer air mass.
11		An air mass that formed over central Canada in January would be classified as
			A)	continental polar.
			B)	maritime tropical.
			C)	continental tropical.
			D)	maritime polar.
12		A wave in a slowly advancing cold or stationary front can result in an area of
			A)	high pressure.
			B)	low pressure.
			C)	clear weather.
			D)	anticyclones.
13		Most cyclonic storms in the continental United states move
			A)	southward.
			B)	northward.
			C)	eastward.
			D)	westward.
14		An advancing warm front usually produces what kind of clouds at the leading edge?
			A)	stratus
			B)	cirrus
			C)	cumulus
			D)	no clouds are produced
15		Winds tend to blow in what direction with respect to a low-pressure center in the Northern Hemisphere?
			A)	counterclockwise
			B)	clockwise
			C)	perpendicular to the direction of movement
			D)	parallel to the isobars
16		Tornadoes are associated with what type of clouds?
			A)	thunderstorms
			B)	stratus
			C)	cirrus
			D)	none of the above
17		Fairly accurate weather forecasts can be made up to
			A)	1 day.
			B)	3 days.
			C)	5 days.
			D)	7 days.
18		The basic framework for describing the earth's climates is based on
			A)	latitude.
			B)	longitude.
			C)	altitude.
			D)	none of the above.
19		Most of the southeastern part of the United States has a climate that is
			A)	Mediterranean.
			B)	humid continental.
			C)	marine.
			D)	humid subtropical.
20		In the United States, the Mediterranean climate is found in
			A)	Florida.
			B)	Texas.
			C)	Arizona.
			D)	California.