Q&A Hero

Q: The northern Atlantic Ocean is the source region for the ______________ type of air mass. A) cA B) cP C) mP D) mT

Q: When two advancing fronts meet, a typical result is A) a stationary front. B) a warm front. C) a cold front. D) none of these.

Q: When a cold front advances under a warm front, this results in a(n) A) stationary front. B) anticyclone. C) cold front occlusion. D) warm front occlusion.

Q: Hawaii's weather is chiefly affected by what type of air mass? A) mA B) mP C) cP D) mT

Q: The Pacific Ocean southwest of the United States is the source region for the ______________ type of air mass. A) cP B) mA C) mT D) mP

Q: Which of the following is an essential agent of the Bergeron process? A) Wind B) Carbon dioxide C) Mixing D) Rain

Q: Which of the following is formed by direct freezing of water droplets? A) Dew B) Snow C) Sleet D) Frost

Q: When the dew point is below 0C, which of the following is likely to form? A) Sleet B) Snow C) Hail D) Dew

Q: A form of precipitation that results from convection cycles in clouds is A) sleet. B) rain. C) hail. D) fog.

Q: For water droplets to form, what must be present? A) Smog B) Hygroscopic nuclei C) Carbon dioxide D) Ozone

Q: During the approach of a severe thunderstorm, workers on a project see lightning and then hear the resulting thunder 25 s later. Approximately how far away, in miles, is the storm? A) 5 mi B) 10 mi C) 6 mi D) 7 mi

Q: Albedo changes may result from ______________ pollution. A) smog B) particulate C) gas D) noise

Q: The component in CFCs that is responsible for destroying ozone is A) chlorine. B) oxygen. C) carbon. D) none of the above.

Q: In the amended Montreal Protocol, many nations agreed to phase out, by the year 2000, A) trash burning. B) hydrocarbons. C) gasoline automobiles. D) CFCs.

Q: How good or bad (in terms of pollution) the air is, is rated by a color-coded ________ Index. A) Irritant B) Pollution C) Air Quality D) Pollen

Q: The type of smog that forms in Los Angeles is called ______________ smog. A) photochemical B) exhaust C) biochemical D) exhaugenic

Q: A common fuel impurity in fossil fuels is A) sulfur. B) radon. C) carbon. D) hydrogen.

Q: A class of pollutants formed at high temperatures (nearly complete combustion) in the presence of air is A) sulfur oxides. B) carbon oxides. C) iron oxides. D) nitrogen oxides.

Q: Smog is a mixture of smoke and A) fog. B) CO2. C) O2. D) CO.

Q: Air pollution results from ______________ combustion of impure fuels. A) incomplete B) complete C) overheated D) none of the above

Q: A natural agent of chemical weathering that is enhanced by CO2 pollution is A) sulfur dioxide, SO2. B) carbon monoxide, CO. C) ozone, O3. D) carbonic acid, H2CO3.

Q: A high-pressure air mass that moves over a region and becomes stationary may give rise to A) a pressure inversion only. B) a radiation inversion only. C) a subsidence inversion only D) all of the above

Q: Coal, gas, and oil are ______________ fuels. A) fossil B) renewable C) human-made D) infinite

Q: Lightning that illuminates clouds with flickering flashes is called A) heat lightning. B) flash lightning. C) ball lightning. D) bolt lightning.

Q: Snowstorms accompanied by high winds and low temperatures are called A) blizzards. B) ice storms. C) hail storms. D) tornados.

Q: When at home during a tornado warning, you should seek shelter in ______________ of the building. A) the basement or lowest central level B) the attic C) a doorway D) the garage

Q: The dome of water associated with a hurricane making landfall is called a A) storm surge. B) tide. C) tidal wave. D) flood.

Q: A hurricane, in other parts of the world, is also known as A) a cyclone. B) a willy-willy. C) a typhoon. D) all of the above.

Q: Hurricanes gain strength when over A) warm water. B) hot air. C) cold water. D) wind.

Q: Hurricanes derive their energy from A) latent heat. B) hot air. C) cold water. D) wind.

Q: The low-pressure center of a hurricane is called the A) eye. B) vortex. C) lid. D) cap.

Q: Conditions opposite to those of El Nio conditions are called A) La Nia. B) La Nio. C) El Nia. D) Anti-Nio.

Q: A tornado ______________ is issued when a tornado has been sighted or indicated on radar. A) warning B) notice C) advisory D) ticket

Q: Rain drops that freeze prior to striking the warm ground is a(n) ______________ storm. A) hail B) rain C) ice D) snow

Q: Rain that freezes on striking a cold surface gives rise to a(n) ______________ storm. A) hail B) rain C) ice D) snow

Q: An usually results inA) more rainfall for South America.B) warmer water in the western Pacific.C) less rainfall for Australia.D) all of the above.E) none of the above.

Q: derives its name fromA) what it does.B) when it arrives.C) how strong it is.D) how weak it is.

Q: Lightning between a cloud and the surrounding air is called A) air discharges. B) cloud discharges. C) ground discharges. D) intracloud discharges.

Q: The boundary between two air masses is called a A) division. B) border. C) front. D) storm.

Q: An air mass forming over the Gulf of Mexico would be classified as A) mE. B) mT. C) aP. D) cE.

Q: An air mass derives its characteristics from its A) temperature. B) surroundings. C) location. D) source region.

Q: The process by which raindrops are formed by the collision of droplets is called A) the Bergeron process. B) fusion. C) fission. D) coalescence.

Q: In the Bergeron process, condensation occurs on A) ice crystals. B) dust. C) carbon dioxide. D) oxygen.

Q: When air is cooled below its dew point without condensation, it is said to be A) wet. B) dry. C) supersaturated. D) unsaturated.

Q: The velocity-dependent force that produces air motion and is associated with Earth's rotation is called the ______________.

Q: The rate at which the temperature decreases with altitude is called the ______________.

Q: Stratocumulus clouds belong to the ______________ cloud family.

Q: The cloud root name meaning "heap" is ______________.

Q: Doppler radars at airports are capable of detecting dangerous, downward ______________.

Q: Ideally, the wind direction is ______________ to isobars.

Q: The blueness of the sky results from ______________.

Q: Meteorologists commonly measure and report (on radio and television) pressure in units of ______________.

Q: The major contribution in heating the troposphere comes from ______________.

Q: A wind vane points in the direction ______________ the wind is blowing.

Q: The rate of temperature decrease with altitude is called the ______________.

Q: The relative humidity is 100% at the ______________ temperature.

Q: The principal greenhouse gases are ______________ and ______________.

Q: A barometer that does not use mercury is a(n) ______________ barometer.

Q: Relative humidity is measured with a(n) ______________.

Q: The atmospheric division that lies directly above the stratosphere is the ______________.

Q: The ______________ lies below the stratosphere.

Q: The fraction of incident light that a body reflects is called its ______________.

Q: Radio waves are reflected by layers in the ______________.

Q: The ozone layer absorbs ______________ radiation.

Q: The term weather refers to the atmospheric conditions of the ______________.

Q: Carbon dioxide is removed from the air by ______________.

Q: After nitrogen and oxygen, the major constituent of the air is___________.

Q: The study of all aspects of the atmosphere is called ______________.

Q: Cloud dissipation results from A) an inverted lapse rate. B) hygroscopic nuclei. C) supercooled vapor. D) descending air.

Q: A normal lapse rate of 3.5 F/1000 ft is equivalent to A) 3.5 C/m. B) 1.9 C/1000 ft. C) 3.5 C/1000 ft. D) 6.5 C/1000 ft.

Q: A normal lapse rate of 2.7 F/1000 ft is equivalent to A) 3.5 C/m. B) 1.5 C/1000 ft. C) 5.0 C/1000 ft. D) 6.5 C/1000 ft.

Q: A normal lapse rate of 3.5 F/1000 ft is equivalent to A) 3.5 C/m. B) 4 C/1000 ft. C) 3.5 C/km. D) 6.5 C/1000 m.

Q: An average lapse rate of 2.7 F/1000 ft is equivalent to A) 1.5 C/m. B) 4.0 C/1000 ft. C) 5.0 C/km. D) 6.5 C/1000 m.

Q: A type of cloud composed of ice crystals is the A) altostratus. B) cirrostratus. C) stratus. D) nimbostratus.

Q: Nimbus means A) "poorly formed." B) "rain forming cloud." C) "heap." D) none of these.

Q: Nimbus means A) "poorly formed." B) "curl." C) "heap." D) none of these.

Q: An altocumulus cloud belongs to which cloud family? A) Low B) Clouds of vertical development C) High D) Middle

Q: Which of the following is not a member of the low-cloud family? A) Nimbostratus cloud B) Fog C) Stratus cloud D) Cirrus cloud

Q: Clouds described as "artist's brushes" or "mare's tails" belong to what cloud family? A) Middle B) Low C) High D) None of these

Q: The conterminous United States lies predominantly in which wind zone? A) Westerlies B) Northeast tradewinds C) Polar easterlies D) Doldrums