Environment

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Across
  1. 2. to become greater
  2. 3. to become liquid by heat
  3. 4. wild animals and plants
  4. 7. any combustible organic material formed by the decomposition of prehistoric organisms
  5. 10. a tropical forest
  6. 12. buildings with facilities for the manufacture of goods
  7. 13. a long period of dry weather
  8. 15. a violent tropical storm
  9. 16. a measure of the amount of carbon dioxide released in the atmosphere by a company, household or individual
  10. 18. having a beneficial effect on the environment
  11. 20. a large white bear of arctic regions
Down
  1. 1. a period of abnormally hot weather
  2. 5. a mineral susbstance made of carbon, used as a fuel
  3. 6. capable of decomposing through the action of living organisms
  4. 8. the destruction of forests by people
  5. 9. heat radiation from the sun converted into electrical power
  6. 11. to be a source of danger to
  7. 14. an increase in the average temperature of the earth's atmosphere
  8. 17. to treat sos as to make suitable for reuse
  9. 19. a great flowing or overflowing of water