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Twelfth Grade (Grade 12) Universe Questions

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Grade 12 Universe
What is a light-year?
  1. a shorter than average year
  2. the distance that light travels in one year
  3. the time it takes light to travel from the Sun to Earth
  4. the speed of time travel
Grade 12 Universe
Which of the following statements is NOT true about stars, galaxies and the universe?
  1. The universe contains a billion x a billion stars.
  2. A galaxy contains solar systems.
  3. There are billions of galaxies in a solar system.
  4. Light years are used to measure distance between stars and galaxies.
Grade 12 Universe
What is the importance of the conclusion of the plasma Universe to the creation of greater complexity?
  1. Cooling of the universe allowed atoms to form
  2. Human life started thousand years later
  3. Gravitational pull was formed
  4. Formation of energy sources in the universe