Across
- 1. Fine soil erosion by flowing rainwater, also called wash-off erosion.
- 5. Farming practice of planting only one variety of crop.
- 7. Excess irrigation causes water ______ in soil.
- 8. Farming method that avoids ploughing to reduce erosion.
- 10. Progressive increase of toxic chemicals in organisms through food chains
- 13. Fertilisers that replenish nitrogen naturally, such as cow dung or compost.
- 16. The process of loosening and displacement of topsoil particles.
- 17. The physico-chemical breakdown of rocks into smaller fragments.
- 19. Soil erosion by wind in arid and sandy regions.
- 20. Excess salts deposited on soil due to irrigation.
Down
- 2. Farming on slopes using levelled steps to reduce erosion.
- 3. Farming technique where crops are grown in strips across slopes.
- 4. Fertiliser runoff that causes algal blooms in water bodies.
- 6. Deterioration in the quality of land, reducing its productivity.
- 9. Chemicals used to kill pests, weeds, or fungi
- 10. Raindrops act like tiny ______ when they hit bare soil.
- 11. Sudden mass movement of soil down a slope.
- 12. The natural predators or parasites used to control pests.
- 14. Cutting and felling of trees that accelerates soil erosion.
- 15. Shelter belts of trees planted to reduce wind erosion.
- 18. Man-made crop varieties bred for high productivity.