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Science in Society A2 - Responding to Climate Change
Flash cards for a module of the "Science in Society" A_Level from AQA
9
Science
Not Applicable
06/01/2010

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Cards

Term
Name some ways that climate change data can be gathered for the present day.
Definition
Weather satellites, individual measurement stations using instrements to take readings.
Term
Name some ways that climate change data can be gathered for periods a long time in the past.
Definition
Ice cores, pollen grain analysis, tree ring dating (dendrochronology)
Term
Name the four main "spheres"
Definition
Atmosphere, hydrosphere, lithosphere, biosphere.
Term
IN each of the spheres, what form is carbon in?
Definition
Atmosphere - CO2 gas
Hydosphere - CO2 dissolved.
Lithosphere - minerals (coal)
Biosphere - living tissue.
Term
What processes add CO2 to the atmosphere?
Definition
Burning fossil fuels, industrial processes, deforestation, agriculture.
Term
What processes remove CO2 from the atmosphere?
Definition
Photosynthesis, solution in water.
Term
A hotter object releases radiaton with a longer wavelength than a cooler object.
Definition
False -
Hot = short wavelength + more radiation.
Cool - longer wavelength + less radiation.
Term
What three things can happen to radiation when it strikes an object?
Definition
It can be reflected, transmitted or absorbed.
Term
What gases absorb infared radiation?
Definition
CO2, water vapour, methane.
(Oxygen and nitogen don't)
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