Crossword

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Across
  1. 6. Practice of growing several different crops on a area of land
  2. 8. electronic products that have become unwanted, non-working or obsolete
  3. 9. warming Increase in the overall temperature of the earth's atmosphere
  4. 11. Plants from a particular region
  5. 12. Preserve Resources for future generation
  6. 13. Species which are likely to become extinct
  7. 14. Production and Discharge of something
Down
  1. 1. An energy which never runs out
  2. 2. Study of economics & Geogrophic factors
  3. 3. Contamination into the natural environment
  4. 4. To spend the winter in close quarters by animals
  5. 5. Process of growing a particular crop
  6. 7. Invisible rays that comes from the sun and cause skin cancer
  7. 10. Area covered with lot of green healthy plants & trees