Plant Agriculture

4. Has the largest particle size of soil
7. This event happened due to stock markets crashed
10. An ecosystem covered with big bluestem, switchgrass, and Indian grass, which could grow up to eight feet tall.
13. Plants gather energy through this
15. Humus layer with non decomposed plant matter
16. profile Shows layers of soil
18. Physical breakdown of rock by wind

1. Parent material with rock that undergoes little weathering
2. Molecular nature of rock changing due to reactions with water and oxygen
3. Bedrock layer
5. Topsoil with organic matter mixed with rock
6. Has the smallest particle size of soil
8. This event was caused by a drought
9. medium size particles
11. How water moves through the soil
12. Subsoil with tiny rock
13. triangle This classifies soil based on relative amounts of each particle
14. Loosens and mixes soil when then increases water percolation
17. A mixture of Humas,rock particles,minerals,water,and air
19. How carbon dioxide is obtained for matter