Unit 2 Ecological Changes Vocab

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Across
  1. 4. Mass of ice on rivers formed by snow near the poles of the earth
  2. 9. where rock fragments, gas, and lava are erupted at earths crust
  3. 10. Trees that have needles for leaves
  4. 11. Trees that have Broad Leaves
  5. 13. Boundary of an advancing mass of warm air
  6. 16. Cold phase that counter parts from South america back to Australia
  7. 18. Boundary of an advancing mass of cold air
Down
  1. 1. plant that lives more than two years.
  2. 2. Absorbs infrared radiation (Greenhouse gas)
  3. 3. atmosphere in a certain area like Rain and wind
  4. 5. volume of air defined by its temperature and humidity
  5. 6. Human activities bring changes in the state of environment
  6. 7. plant that lives within one growing season
  7. 8. the amount of water vapor in the atmosphere
  8. 12. Plant or animal successively gives way to another until a stable climax
  9. 14. where its how hot and cold something
  10. 15. Warm phase that goes from Australia to west South America
  11. 17. long term conditions in an area