ENVIRONMENTAL

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Across
  1. 2. the largest desert in the world
  2. 5. SMOKE CAUSES WHAT
  3. 8. AN EXAMPLE OF RENEWABLE RESOURCE
  4. 9. a greenhouse gas
  5. 11. a plant which is used as medicine in skin care
  6. 12. PLANTING OF TREE IS CALLED
  7. 14. 78% of atmosphere is covered with this gas
  8. 17. the longest river
  9. 19. the major air pollutant
  10. 20. acid rain is caused by
Down
  1. 1. these cells are used to convert solar energy to electrical energy
  2. 3. the lungs of the earth
  3. 4. THE DISEASE CAUSED by contaminated food and water
  4. 6. THE LOSS OF WATER FROM PLANTS AND TREE LEAVES
  5. 7. the tree which gives oxygen 24 hours
  6. 10. the process of plants preparing food using sunlight
  7. 13. flora and fauna
  8. 15. extraction of minerals and ores
  9. 16. IN THE HILLS FORREST COVER IS EFFECTED BY THIS
  10. 18. dissolved oxygen needed by microbes to decompose organic waste