end of year crossword

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Across
  1. 3. a type of nutrient cycle that is influenced by climate change.
  2. 6. the warming of the earth's atmosphere due to human involvement.
  3. 8. doesn't have any life.
  4. 10. happens due to an increase of fertilizer in water.
  5. 11. a moving boundary of cooler air displacing warmer air.
  6. 13. friction dragging along air layers near the earth.
  7. 14. warm, incoming air sliding over cooler, neighboring air.
  8. 16. an international agreement between 84 countries to reduce greenhouse gasses.
  9. 17. gasses that are trapped in the earth's atmosphere.
Down
  1. 1. physical descriptions of the atmosphere.
  2. 2. a natural disaster characterized by strong winds, rain, thunder, and lightning.
  3. 4. light reflected off a surface.
  4. 5. an unusual warming of the surface of the ocean's water.
  5. 7. a storm that has a seasonal reversing wind along with heavy precipitation.
  6. 9. a natural disaster characterized by strong, twirling winds and updrafts.
  7. 12. a type of renewable energy.
  8. 15. the layer of the atmosphere closest to earth's surface.