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Earth's Changing Climate CJ Review

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  • Fluctuations occur during ___ periods of time, while trends occur during ___ periods of time.
    long/short
    short/long
  • Although there are many fluctuations, there is an increase in ____ and a decrease in ____ on Earth since about 1880.
    temperature/ice
    ice/temperature
  • If methane in the atmosphere decreases, what will that do to Earth's temperature?
    it will decrease
    it will stay the same
    it will increase
  • Why have more tornadoes formed each year since 1950?
    temperatures have risen on Earth
    more carbon dioxide is in the air
  • Should coastal cities be worried about sea level rise? Why?
    No, it would cause no changes to cities
    Yes, sea level rises could flood towns
    Yes, sea level rises could create more carbon dioxide
  • If methane in the atmosphere increases, what happens to the amount of energy absorbed on Earth?
    it decreases
    it increases
  • If the amount of carbon dioxide decreased, how would energy in the Earth system change?
    more energy would be absorbed because more energy entered the system
    less energy would be absorbed because less energy entered the system
  • Since 1880, what trend have we seen in regards to global average temperatures?
    They have increased
    They have stayed the same
    They have decreased
  • If carbon dioxide decreases in the atmosphere, what will that do to the temperature on Earth?
    it will increase
    it will stay the same
    it will decrease
  • Nitrogen Dioxide can increase temperatures on Earth.
    True
    False
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