Review+Questions+-+1

Review+Questions+-+1 - Soil Science 10 Fall 2010 Review...

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Soil Science 10 Fall 2010 Review Questions for Exam #1 1. What are the distinguishing features of A, B, C, E, R, Oa, Oe, and Oi horizons? (T1) 2. What is the soil composed of and what are the approximate percentages of each fraction? (T1) 3. What are illuvial and eluvial horizons? (T1) 4. What morphological properties are used to distinguish between different horizons in the field? (T1) 5. Describe the meaning of the three parameters used in the Munsell color notation - hue, value, chroma. (T2) 6. What are the principle components (coloring agents) responsible for color in a soil profile? (T2) 7. Why are reduced soils (no oxygen) blue-green or gray, while oxidized soils (with oxygen) are red to yellow? (T2) 8. What can you say about a soil that has bright red redoximorphic features (mottles) in an otherwise gray matrix? (T2) 9. How can you distinguish between sand, silt and clay in the field? (T2) 10. How do coarse fragments (>2-mm) in a soil profile influence the ability of that soil to grow crops? (T2)
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Review+Questions+-+1 - Soil Science 10 Fall 2010 Review...

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