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5 Written questions

5 Matching questions

  1. solar winds
  2. 10 billion years
  3. the sun's gravity is so large
  4. (H) hydrogen
  5. 10 to 11 years
  1. a streams of electrically charged particles coming from the corona
  2. b because its mass is so great
  3. c the element the sun uses to generate energy
  4. d time span over which the number of sunspots varies
  5. e the length of time it will take for the sun to use up all of its hydrogen

5 Multiple choice questions

  1. the process by which the sun generates energy
  2. disruptions of radio, television and telephone signals and electrical power problems
  3. the outer layer of the sun's atmosphere
  4. the temperature in the core of the sun
  5. fusion only occurs in these two conditions

5 True/False questions

  1. hypothesis about sunspotsareas of gas on the sun which are cooler than areas that surround them


  2. solar flareswhen several prominences connect, these are produced


  3. (He) heliumwhere solar winds can enter the Earth's atmosphere


  4. slightly lessHow does the mass of the helium produced by the sun compare with the mass of the hydrogen that goes into the process?


  5. the sun's gravitybecause its mass is so great


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