Across
- 2. Which particle of soil doesn't air or water through very well?
- 5. Soils on mountain and hillsides can wash away, making the topsoil _______.
- 8. Acids from ______ break down rocks.
- 10. What soil contributor recycles organic matter and releases nutrients?
- 11. Parent ______ determines if soil is acid or basic.
- 12. Silt, sand, and clay are all soil ______
Down
- 1. Do higher temperatures make faster or slower breakdown and release of nutrients?
- 3. Which soil particle is smooth and powdery?
- 4. Organisms create ______ for water and roots.
- 5. The two most important climatic influences are rainfall and ______.
- 6. A negative human influence to soil is cutting down rainforests and cultivation on steep slopes. What does this cause?
- 7. Over time, rocks break down because of snow, rainfall, freezing and thawing. These pieces then breakdown even more and become ______.
- 9. Cultivating and farming = ______ topsoil.
- 13. Which particle of soil is largest?