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12 Cards in this Set
- Front
- Back
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What are the greenhouse gases? |
- water vapour - methane - nitrous oxide - carbon dioxide |
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What do the greenhouse gases do? |
Warm the atmosphere by trapping heat |
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Greenhouse effect |
a process that occurs when gases in Earth's atmosphere trap the Sun's heat |
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How does the greenhouse effect work? |
Incoming radiation from the sun warms the Earth and is trapped by greenhouse gases, warming and insulating the Earth like a "blanket" |
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Ways that I can stop global warming |
- use less hot water - change lights - turn off lights - use products with less packaging - plant a tree - turn off electronic devices when not in use - adjust my thermostat |
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too much greenhouse not enough |
too much: ice caps melting, sea levels rising, mass extinctions not enough: temp would decrease significantly, all water on Earth would freeze, the oceans would turn into ice. life, as we know it, would not exist |
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Main causes of a rise in carbon dioxide |
- burning of fossil fuels - deforestation - transportation - electricity |
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difference between weather and climate |
Weather is the day-to-day state of the atmosphere in termsof temperature, wind, cloud cover and precipitation. Climate is the long-term averages of weather conditions, often 30 years. |
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carbon cycle |
The carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere. |
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Explain the carbon cycle. |
- the process of photosynthesis in green plants incorporates carbon into living things - organisms consume them and when they respire, it goes back to the atmosphere & hydrosphere as carbon dioxife where it is again available for photosynthesis - released in wastes eg. faeces, urine, fallen leaves - as decomposer organisms respire, carbon is then released back to the atmosphere, water and soil |
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evidence for climate change: |
- glaciers they advance when climate coolz & retreat when it warmz - pollen analysis - sea level chNge - ice cores |
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evidence for climate change: |
- glaciers they advance when climate coolz & retreat when it warmz - pollen analysis - sea level chNge - ice cores |
