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5 Written questions

5 Matching questions

  1. (H) hydrogen
  2. 10 to 11 years
  3. the Earth's atmosphere and magnetic field
  4. prominences
  5. sunspots
  1. a areas of gas on the sun which are cooler than areas that surround them
  2. b reddish loops of gas which link sunspots
  3. c these usually prevent solar winds from entering our world
  4. d time span over which the number of sunspots varies
  5. e the element the sun uses to generate energy

5 Multiple choice questions

  1. in the sun
  2. the temperature in the core of the sun
  3. the length of time it will take for the sun to use up all of its hydrogen
  4. the variation in sunspots may cause changes in the Earth's temperature
  5. disruptions of radio, television and telephone signals and electrical power problems

5 True/False questions

  1. chromospherethe inner layer of the sun's atmosphere which produces the light


  2. solar flares increasewhen several prominences connect, these are produced


  3. solar flaresstreams of electrically charged particles coming from the corona


  4. solar windswhen several prominences connect, these are produced


  5. slightly lesswhen several prominences connect, these are produced