Across
- 2. Over how many percent of the Earth's crust is made of the elements oxygen, silicon, and aluminium, with smaller amounts of calcium, iron, potassium, magnesium, and sodium.
- 5. Organic carbon can be determined experimentally through what process?
- 7. What type of mixture of interacting materials is soil?
- 9. Mineralization is the process in which organic matter containing nitrogen and what is broken down?
- 12. Kills unwanted fungi.
- 13. What is used in plant cell wall synthesis?
- 14. What percent of irrigated land has been damaged by salt?
- 15. Which organic soil pollutant originates from household products, fuel, glues, paints?
Down
- 1. What property leads to the absorption of water by soil?
- 3. What results in a higher heat capacity for moist soil?
- 4. Mixture of non-living organic components in soil in various stages of decomposition.
- 6. What is the shape of silica?
- 8. The accumulation of salt or water soluble ions over time.
- 10. Inorganic matter contains silicates, aluminosilicates, and what?
- 11. What is the name of the water insoluble mixture formed by bacteria and fungi converting organic matter?