Chemistry

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Across
  1. 2. This is the formula for carbon dioxide
  2. 5. This is an example of how the sun and greenhouse ___ work together to warm the earth.
  3. 6. By absorbing carbon dioxide the ocean becomes more ___. This is called ocean acidification.
  4. 7. This animal releases, on average, between 70- 120 kg of Methane per year.
  5. 8. A more acidic ocean has a ___ affect on sea life by breaking down the shells of animals and causing coral to grow more slowly.
  6. 11. Methane has a 23 times higher negative effect on the ___ than carbon dioxide.
  7. 15. This is the formula for Sulfur Hexafluoride.
  8. 16. Hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride are greenhouse gases that are this type of chemical.
  9. 20. Greenhouse gases are ____ for humans to inhabit earth.
Down
  1. 1. To compare gases with different properties, the Intergovernmental Panel on Climate Change developed “global warming ___”
  2. 3. 3 major greenhouse gases are carbon dioxide, nitrous oxide, and ___
  3. 4. 1__ of beef produces the equivalent of 34.6 kg CO2
  4. 5. A ______ gas traps heat in the atmosphere.
  5. 9. A kilogram of ____ is responsible for the equivalent of the amount of CO2 emitted by the average European car every 250 kilometres, and burns enough energy to light a 100-watt bulb for nearly 20 days.
  6. 10. All ___ help reduce greenhouse gases by absorbing carbon dioxide and giving off oxygen.
  7. 12. An ___ in greenhouse gases lead to a warmer earth.
  8. 13. Methane is more harmful because it can ___ more heat than the more abundant carbon dioxide.
  9. 14. The ___ absorbs carbon dioxide
  10. 17. Greenhouse gases absorb ___ that is radiated from the earth’s surface.
  11. 18. The most ___ greenhouse gas is sulfur hexafluoride.
  12. 19. Sulfur Hexafluoride is 23,500 more ___ than carbon dioxide.