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5 Written questions

5 Matching questions

  1. solar flares increase
  2. prominences
  3. the sun's gravity
  4. sunspots
  5. 10 to 11 years
  1. a areas of gas on the sun which are cooler than areas that surround them
  2. b time span over which the number of sunspots varies
  3. c the number of charged particles in solar winds
  4. d reddish loops of gas which link sunspots
  5. e the most powerful gravitational force in the solar system

5 Multiple choice questions

  1. the process by which the sun generates energy
  2. How does the mass of the helium produced by the sun compare with the mass of the hydrogen that goes into the process?
  3. the outer layer of the sun's atmosphere
  4. the temperature in the core of the sun
  5. the glowing of gas molecules in the Earth's atmosphere caused by solar winds

5 True/False questions

  1. the sun's gravity is so largebecause its mass is so great


  2. solar windsstreams of electrically charged particles coming from the corona


  3. the Earth's atmosphere and magnetic fieldbecause its mass is so great


  4. extremely high pressure and temperaturefusion only occurs in these two conditions


  5. (He) heliumthe product of the sun's fusion


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