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16 Cards in this Set
- Front
- Back
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What is the greenhouse effect?
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Trapping of heat from the sun in the atmosphere
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Effectiveness of CFCs
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10,000 - 25,000 (compared to CO2)
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Greenhouse effect allows:
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visible and uv light of short wavelenght to pass through atmosphere to heat the air and Earth.
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Main greenhouse gases (6):
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Methane, carbon dioxide, ozone, water vapour, dinitrogen monoxide, chlorofluorocarbons
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Effects of greenhouse gases depend on:
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abundance and ability of the gases to absorb heat
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Effectiveness of methane when compared with carbon dioxide:
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30 times more effective
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Results of global warming
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Increase in temperature by 0.5 degrees celsius.
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What does the temperature of the earth depend on? (2)
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Amount of sunlight recieved and ability of the atmosphere to retain heat.
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Earth's average temperature
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16 degrees Celsius
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Period in history after which the abundance of greenhouse gases increased
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Industrial Revolution
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Natural greenhouse gasses include:
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H2O and CO2
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What is global warming?
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The gradual increase in planetwide temperatures.
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Global warming gets worse as:
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greenhouse gases increase
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Effects of global warming (3)
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Temperature increase by 0.5 degree Celcius, precipitation increase, sea level increase.
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Temperature of earth depends on (3):
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amount of sunlight received, proportions absorbed by the earth or reflected back into space, and the extent to which the atmosphere retains heat.
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Short wavelength sunlight penetrates:
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the atmosphere to warm earth's surface, which absorbs some of the energy.
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