SST REVISION OF CH-1 and CH-2

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Across
  1. 2. sustainable and optimum utilisation
  2. 5. farming growing of crops on level steps
  3. 8. process of planting trees
  4. 9. height above the mean sea level
Down
  1. 1. resources which are surveyed and developed
  2. 3. process of gradually becoming worse
  3. 4. the maximum forest cover in the world
  4. 6. developing country
  5. 7. rock original rock from which soil is formed
  6. 10. developed country