Quiz #20

Physics 137                                                                                Wednesday, December 7, 2011

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1.  The outside temperature as today's class began was nearest (a) 21°F,  (b) 26°F,  (c) 31°F,  (d) 36°F.

          2.  The current sky is (a) clear, (b) partly cloudy, (c) mostly cloudy, (d) overcast.

          3.  Which type of cloud is currently present?  (a) cirrus, (b) cirrostratus, (c) altostratus, (d) stratus, (e) cumulus humilis.

          4.  There is currently a temperature inversion.  (a) True, (b) false.

          5.  The air pollutant(s) responsible for most of the visible pollution is/are (a) aerosols, (b) carbon monoxide, (c) nitrogen
      oxides, (d) sulfur oxides, (e) volatile organic compounds (VOCs)..

           6. Toxic gases and respiratory irritants which are emitted into the atmosphere by natural processes (such as volcanic
    eruptions, dust storms, or naturally occurring forest fires) are not considered to be pollutants. (a) True, (b) false.

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