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