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5 Written questions

5 Matching questions

  1. Milankovitch cycles
  2. The 3 Milankovitch cycles
  3. precession
  4. ice cores
  5. eccentricity
  1. a the shape of earth's orbit
  2. b the wobble of the earth on its axis (11,000 year period to move between extremes)
  3. c Precession, obliquity, and eccentricity
  4. d orbital parameters affecting how much energy earth receives from the sun
  5. e ice that is drilled out of glaciers. Gas bubbles in them give a direct measurement of what the climate was like in the past

5 Multiple choice questions

  1. solar radiation from the sun
  2. the closest orbital point to the sun (147 million km)
  3. the conveyor belt of heat and salt transport in oceans
  4. reflectivity of earth's surface (mostly reflected by clouds)
  5. radiation reflected from the surface is absorbed by some gases and re-radiated as heat, some of which stays in the atmosphere and warms the surface

5 True/False questions

  1. positive feedbackWhen A increases, B decreases, causing A to decrease Ex. global warming increase, thermohaline circulation decrease, global warming decrease


  2. weathershort term changes in surface conditions


  3. obliquitythe average surface condition over some period of time


  4. cryospherethe frozen part of the earth's surface, including glaciers, polar ice caps, continental ice sheets, etc.


  5. West Pacific Warm Poolphotosynthesis in surface waters which uses up C02 draws down more C02 from the atmosphere


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