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5 Written questions

5 Matching questions

  1. biological pump
  2. insolation
  3. eccentricity
  4. biogeography
  5. aphelion
  1. a the shape of earth's orbit
  2. b solar radiation from the sun
  3. c photosynthesis in surface waters which uses up C02 draws down more C02 from the atmosphere
  4. d where plants and animals do and don't live now and in the past
  5. e the farthest orbital point from the sun (152 million km)

5 Multiple choice questions

  1. 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
  2. the average surface condition over some period of time
  3. ... affect global weather patterns and are caused by changes in wind strength in the equatorial Pacific Ocean
  4. When A increases, B decreases, causing A to decrease Ex. global warming increase, thermohaline circulation decrease, global warming decrease
  5. (tilt) earth's orientation relative to the solar plane fluctuations (between 21.5 and 24.5 degrees over 41,000 years)

5 True/False questions

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


  2. alkenonesreflectivity of earth's surface (mostly reflected by clouds)


  3. hydrosphereincludes all of the earth's water found in oceans, glaciers, lakes, ground water, and the air.


  4. positive feedbackWhen A increases, B increases, which causes A to increase even more.Ex. temp increase, ice melts, albedo decrease, temp increase


  5. feedbacka change in one component affects another component