Across
- 1. the process by which rocks break down into smaller pieces by physical means
- 3. Constant erosion...the fertility of the soil by removing the A horizon, which contains the fertile humus.
- 6. soil is plowed in curved bands that follow the contour, or shape, of the land
- 8. Creates level areas on slopes to slow water movement.
- 13. the slow, downslope flow of soil saturated with water in areas surrounding glaciers at high elevations
- 16. the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles
- 17. the unweathered rock beneath the soil
- 19. a mixture of weathered rock, mineral fragments, organic material, air, and water. It forms the upper layer of Earth’s surface, supporting plant life.
- 20. precipitation, such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere
- 22. a large block of soil and rock becomes unstable and moves downhill in one piece. The block of soil and rock then slides along the curved slope of the surface
- 23. the name of a Jesuits High School in Chuuk
- 26. the process by which rocks break down as a result of chemical reaction
- 27. liquid that is essential for chemical reactions and nutrient transportation.
- 28. the movement of a large mass of sediment or a section of land down a slope
- 29. the natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks
- 31. Rich in organic material, crucial for plant growth
- 32. farmers plant one type of crop one year and a different type of crop the next
- 34. Slope and elevation affect water drainage and erosion.
- 35. Soil is ... among the slope.
- 36. Rocks with softer or reactive minerals weather more
- 39. one factor that influencing the rates of weathering
- 40. Animals that live in the soil.
Down
- 2. masses of loose rock combined with soil suddenly fall down a slope
- 4. the process by which water flows over a layer of soil and removes the topsoil
- 5. Soil that retains water but can be poorly aerated.
- 7. the process by which a metallic element combines with oxygen
- 9. a broad, flat landform that has a high elevation
- 10. The fall of rock from a steep cliff
- 11. a chemical reaction between water and another substance to form two or more new substances
- 12. The type of rock from which soil develops.
- 14. Decayed remains of plants and animals, providing nutrients.
- 15. a process in which the materials of Earth’s surface are loosened, dissolved, or worn away and transported from one place to another by a natural agent, such as wind, water, ice, or gravity
- 18. crops are planted in alternating bands
- 21. the conversion of a compound into a carbonate
- 24. Rocks with harder minerals weather more ...
- 25. one factor that influencing the rates of weathering
- 26. the slow downhill movement of weathered rock material
- 30. Generally weather slowly due to their hard, dense structure.
- 33. the other name of mechanical weathering
- 37. The rapid movement of a large amount of mud creates a ...
- 38. a physical feature of Earth’s surface