Climate change crossword May Seals

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Across
  1. 2. 78% of the atmosphere composition
  2. 3. glaciers expanding
  3. 5. used to measure the past atmosphere of the earth
  4. 6. glaciers shrinking
  5. 9. absorbs a d scatters ultra violet radiation
  6. 11. underwater current of warm and cold salt water
  7. 12. 0.93% of the atmosphere
  8. 14. took place during 950-1250c.e.
  9. 15. A thin layer of gases that surrounds the earth
Down
  1. 1. a type of greenhouse gas
  2. 4. contains the air we breath and weather
  3. 7. solar radiation passes through atmosphere and warms eart
  4. 8. releases sulfur dioxide and particulates that block the sun
  5. 10. 21% of the atmosphere composition
  6. 13. earth´s temperature drops enough for glaciers to form