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