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