Global Warming Worksheet

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Name:_______________________________

Which of these is the main greenhouse gas?
carbon dioxide
methane
CFCs
carbon dioxide The difference in global temperature between an Ice Age and a warm period is about:
1°C
6°C
60°C
6°C The greenhouse gas generated by the decomposition of waste is:
carbon dioxide
methane
CFCs
methane The burning of fossil fuels is the prime cause of increased greenhouse gases.
True
False

True The greenhouse gas that is NOT naturally present in the atmosphere is:
carbon dioxide
methane
CFCs
CFCs Which greenhouse gas was the first to be regulated worldwide?
methane
CFCs
nitrous oxide
CFCs Planting trees will increase the amount of CO2 in the atmosphere.
True
False

False The oceans show a temperature increase before the land or air.
True
False

False Which country currently emits the most greenhouse gases?
China
Japan
United States
China Which of these forms of transportation is the most energy efficient?
car
train
plane
train How long does it take for carbon dioxide in the atmosphere to disperse?
1 year
10 years
100 years
100 years Which of these gases depletes the Earth's ozone layer?
carbon dioxide
methane
CFCs
CFCs