Greenhouse gases trap heat around Earth. This GCSE Geography quiz tests how the greenhouse effect works, why it is increasing, and what it means for our climate.
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You can find more about this topic by visiting BBC Bitesize - The greenhouse effect
The greenhouse effect and global warming are linked but are far from being the same. The greenhouse effect is just a part of global warming
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Since the middle of the twentieth century, scientists have measured a gradual increase in carbon dioxide levels in the atmosphere
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The increase in average temperature is referred to as global warming
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You may have been tempted by the second option, however, it is the burning of fossil fuels that puts more and more carbon dioxide into the air, adding to the greenhouse gases already there
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Climate is driven by the amount of energy in the atmosphere. On no account should you ever associate the holes in the ozone layer with the greenhouse effect (or climate change or global warming). They are separate and very different issues. This confusion is caused because the CFCs that cause the ozone layer problem are also very powerful greenhouse gases
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Acid rain is caused by acidic gases like sulphur dioxide and nitrogen oxides getting into the air. A lot of students associate this with the greenhouse effect because both problems are partly caused by humans burning fossil fuels
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MEDCs have well-developed manufacturing industries which use a lot of energy derived from fossil fuels and there is usually a greater use of motorised transport per head of population than in LEDCs. NEEs (newly emerging economies) are building their manufacturing bases and cannot yet afford (or are unwilling to invest in) the technology to limit their increasing carbon footprint
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Carbon capture is achieved by planting trees. They use photosynthesis to convert carbon dioxide and water into glucose and oxygen
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Enhanced means 'added to'. Human activity is thought by many people to add to the naturally occuring greenhouse effect
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In tropical rainforests, deforestation is occuring at an alarmingly fast rate. The trees and plants in rainforests grow all year round and constantly remove carbon dioxide from the air. When they are cleared for agriculture, much less carbon dioxide is removed from the air
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