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of 81 available terms
(1 exact duplicate found)

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5 Written questions

5 Matching questions

  1. concave lens
  2. Sun Protection Factor
  3. wave height
  4. acceleration
  5. land breeze
  1. a a number that refers to how much longer skin protected by a sunscreen can be exposed to the sun before becoming red(conpared to unprotected skin)
  2. b a lens that is thinner in the middle than at the edges
  3. c movement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea
  4. d the vertical distance from the crest of a wave to the trough
  5. e The rate at which velocity changes

5 Multiple choice questions

  1. process by which atmospheric gases trap heat close to Earth's surface and prevent it from escaping into space
  2. n. The throwing off or back of light, heat, sound, or any form of energy that travels in waves.
  3. layer of electrically charged particles in the thermosphere that absorbs AM radio waves during the day and reflects them back at night
  4. the layer of the atmosphere that contains the ozone layer; temperature increases as you go up
  5. the brilliant explosion of a dying supergiant star

5 True/False questions

  1. rotationthe spinning of an object on its axis

          

  2. ozonea form of oxygen that has three oxygen atoms in each molecule instead of two. protects us from dangerous ultraviolet radiation from the sun

          

  3. sea breezemovement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea

          

  4. mediumCreation of energy by joining the nuclei of two hydrogen atoms to form helium.

          

  5. revolutionthe movement of an object around another object

          

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