What is the geologic definition of soil

Question # 00574222 Posted By: dr.tony Updated on: 08/13/2017 09:56 AM Due on: 08/13/2017
Subject Geology Topic General Geology Tutorials:
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1. What is the geologic definition of “soil”? How does it differ from other definitions?

2. What is the difference between the formation of soil horizons and sedimentary layers?

3. What are the principle soil horizons? What processes dominate in each horizon?

4. Why is soil development critical to the ability of a soil to support plant growth?

5. Identify the factors that affect the overall characteristics of a soil.

6. Which soil horizon contains an abundance of soil aggregates? How do they form? Why are they not as abundant in the other soil horizons? Why are they important?

7. Why is it that rocks containing calcite exist all over the United States, but soils containing calcite are restricted to the southwestern region?

8. How would you distinguish a mature soil from an immature soil?

9. Figure 14.12 illustrates how soils mature. What other factors that affect the overall characteristics of a soil are illustrated in the figure?

10. How does location in the landscape affect soil development at a particular site?

11. Describe the main types of soils and the processes and features that distinguish them from one another?

12. Describe how soil formation can produce an economically significant mineral deposit.

13. Why are large areas of North America covered with immature soils characterized by weakly developed horizons?

14. How can calcium-rich B horizons from in soils on top of calcium-poor rock in hot and arid regions?

15. Explain why erosion is a major threat to agriculture.

16. Why did the 1930s Dust Bowl happen?

17. Explain some ways to reduce soil erosion.

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