Green House Gases Crossword Puzzle
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QUESTIONS LIST:
- ozone : gas which protects everything on the earth
- fossil fuels : gas from power plants and automobiles
- cfc : a synthetic man made gas
- troposphere : clouds are located here
- atmosphere : provides the earth with oxygen to breathe
- water vapor : water in its gaseous state
- recycle : to reuse
- earth : third planet from the sun
- methane : gas from a sheep and cow
- carbon dioxide : what we breathe
