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Across
  1. 1. In the slash and burn method, ... help fertilise the ground
  2. 3. Natural fertilisers
  3. 6. This metho grows plants without soil
  4. 10. When forest are removed, homes or ... of animals are destroyed
  5. 11. When trees are removed, soil is affected and this leads to
  6. 13. Process ofmaking food by plants
  7. 14. This method involves cutting down of trees
  8. 15. Non-chemical fertilisers are also called ... fertilisers
  9. 20. This chemical to kill insects affects the environment
  10. 21. Plants grown for food are called ...
  11. 24. Chemical fertilisers affect ... life
  12. 25. We eat in order to ...
  13. 26. Food provides us with ...
  14. 27. This method grows plants in a mist of nutrients
  15. 29. burning of trees lead to ...
Down
  1. 2. Plant ... can be used to kill weeds
  2. 4. Farmers use ... to control temperature, water and nutrient supplies
  3. 5. Chemical fertilisers contain these
  4. 7. This indicator changes to many colours based on pH
  5. 8. The green stuff found in plants
  6. 9. This gas is needed by plants to make food
  7. 12. The natural ... of rats are snakes
  8. 16. Litmus paper change to this colour in acids
  9. 17. This type of paper used to tell how acidic or alkaline
  10. 18. This is a weed killer
  11. 19. Phosphorus and nitrogen in water causes ... bloom
  12. 22. Comprises cheese, milk, butter
  13. 23. plants make food in the sun to produce
  14. 25. Aquatic plants underwater also need ...
  15. 28. This gas is given out by plants when making food