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5 Written questions

5 Matching questions

  1. relative humidity
  2. nitrogen dioxide
  3. secondary pollutants
  4. convective circulation
  5. Tropospheric ozone
  1. a A circular current driven by temperature differences, in the air warm air rises into regiona of lower atmospheric pressure, where it expands and cools and then descends and becomes denser.
  2. b a highly reactive, foul smelling reddish brown gas that contributes to smog and acid precipitation.
  3. c the ratio of water vapor a given volume of air contains at a given temperature
  4. d A secondary pollutant, a major component of smog, colorless gas
  5. e Harmful substances produced when primary pollutants interact or react with contituents of the atmosphere

5 Multiple choice questions

  1. a departure from the normal temperature distribution in the atmosphere, in which a pocket of relavitevly cold air occurs near the ground, with warmer air above it.
  2. atmospheric conditions over short time periods, typically hours or days, and within relatively small gergraphic areas
  3. pollutants emitted into the troposphere in a from that can be directly harmful or that can react to form harmful substances
  4. When coal or oil is burned, some portion is completly combusted, forming CO2
  5. A portion of the stratosphere, roughly 17-30 km above sea level, that contains most of the ozone in the atmosphere

5 True/False questions

  1. scrubbersTechnology to chemically treat gas produced in combustion to remove hazardous components and neutralize acidic gases, turning them into water and aslt, in order to reduce smokestack emissions

          

  2. Chlorofluorcarbons (CFC's)The apparent deflection of north-south air currents to a partly east-west direction, caused by the faster spin if regions near the equator than of regions near the poles as a result of earth's rotation

          

  3. warm frontThe bounsry along which a mass of warmer, moister air replaces a mass of colder, drier air.

          

  4. Clean air act of 1970 &19901970- legislation set stricter standards for air quality, imposed limits on emissions from new stationary and mobile sources etc.
    1990- sought to strengthen regulations pertaining to air quality standards, auto emissins, toxic air pollution etc.

          

  5. Coriolis effectThe apparent deflection of north-south air currents to a partly east-west direction, caused by the faster spin if regions near the equator than of regions near the poles as a result of earth's rotation