Inglés

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Across
  1. 1. A way of growing plants without soil, using nutrient-rich water.
  2. 5. The upper layer of the Earth where plants grow.
  3. 6. Growing only one type of crop in a field year after year.
  4. 8. The build-up of salts in the soil that makes it hard for plants to grow.
  5. 9. Substances in the soil that help plants grow.
  6. 10. The ability of soil to provide nutrients for plants.
Down
  1. 2. Natural material from plants and animals that enriches the soil.
  2. 3. Using resources in a way that protects them for the future.
  3. 4. The use of scientific tools or machines to improve soil management.
  4. 7. The process by which soil is worn away by wind or water.