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of 81 available terms
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5 Written questions

5 Matching questions

  1. frequency
  2. Geocentric
  3. convection
  4. thermosphere
  5. high mass star
  1. a when a star is in Main sequence and turns into a high mass star rather then low mass
  2. b The warmest layer, and the layer before the exosphere
  3. c the number of cycles that pass the observer in a given time
  4. d the transfer of thermal energy by the circulation or movement of a liquid or gas
  5. e having the earth as the center

5 Multiple choice questions

  1. A galaxy that goes not have the a regular shape.
  2. Early form of a star; This stage lies between the collapsing of dust and gas and the beginning of nuclear fusion
  3. measure of salt in water
  4. a large cloud of gas and dust in space, spread out in an immense volume
  5. The rate at which velocity changes

5 True/False questions

  1. Elliptical galaxya galaxy shaped like a round or flattened ball, generally containing only old stars

          

  2. kinetic energyenergy that travels in waves (includes solar energy, light energy)

          

  3. global warmingAn increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)

          

  4. atmospherelayer of electrically charged particles in the thermosphere that absorbs AM radio waves during the day and reflects them back at night

          

  5. climateOverall weather in an area over a long period of time

          

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