Geography AQA Greenhouse gasses
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Last updated 10:27 PM on 11/24/22
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10 Terms
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constructive
tectonic plate margin where rising magma adds new material to plates that are diverging or moving apart.
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oceanic crust
thinner part of the earth's crust
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Quaternary period
a period in geological time (2.5 million years ago
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global warming
the general increase in global temperature
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ice cores
samples of ice, often many metres thick. gained by drilling through the ice cover in cold environments
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sunspot
dark spots on the surface of the sun that sometimes discharge big bursts of heat given out by the sun
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greenhouse effect
the gases in the atmosphere which trap outgoing radiation + keep the Earth at a temperature at which humans can live
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enhanced greenhouse
the increase in the effect of global warming due to human activities
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fossil fuels
energy from the plant and animal remains, such as coal, oil + natural gas, including shale gas
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milankovitch theory
warmer temp. as we get closer to Earth + cooler periods as we head further away
Note 
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