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6 Written questions

6 Multiple choice questions

  1. CFCs were $28 billion per year industry
    - Scientist Roland and Molina asked for a ban
  2. Nobel prize in chemistry is won by Roland and Molina
  3. Temperature increases with altitude
    Absorbs short wave radiation
    Nitrogen and oxygen atoms absorb solar energy
  4. 1. Cut fossil fuel use
    - uses e more efficiently
    - use natual gas
    - uses 1/2 as much CO2 as burning of coal to generate electricity
    2. Improve energy efficiency
    3. Shift to renewable energy sources
    - solar
    - wind
    - water
    4. Reduce deforestation
    - Absorb CO2 that we put in the atmosphere
    - Each person would need to plant 1,000 trees a year
    5. Use sustainable agriculture
    - use organic fertilizers
    - soil and water conservation
    - Planting a variety of crops in a large area
    6. Slow population growth
  5. The global sunscreen
    Ozone Layer
    1. Ozone is produced when oxygen molecules interact with lightning and UV radiation from the sun
    2. Keeps 99% of the suns harmful UV radiation from reaching Earths surface
    3. Helps protect human skin cancer, cateracts, sun burns, and damage to the immune system
    4. Protects plants and animals and prevents O2 from changing to O3
  6. 1. At the poles
    2. Austrilla
    3. New Zealand
    4. South Africa

5 True/False questions

  1. Green House Effectgood
    different elements in the atmosphere such as H2O vapor, CO2, CH4, N2O, CFC5 hold solar radiation in the form of heat in our atmosphere


  2. Roland and Molina's findings1. Takes 10-20 years to reach the stratosphere
    2. Under high UV light CFCs break down
    3. Chemical reactions occur and the CFCs combine with O3 breaking the ozone down


  3. MesosphereTemperature decreases with altitude


  4. 198915 years later
    Roland and Molina finally convince politicians to slowly phase out CFCs


  5. Solutions1. The amount of CO2 in the atmosphere is increasing by .4% per year
    2. The net effect would be an increase in the global temperature of about 2 degrees Celsius by 2100
    3. Gasses leading to global warming
    - Methane
    - Chlorofluorocarbons
    - Nitrous Oxide


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