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Questions and Answers
What causes the red color in soils?
What causes the red color in soils?
- Unhydrated iron oxides (correct)
- Manganese oxide
- Partially hydrated iron oxide
- Magnesium sulfate
What does a well-developed red color in soil indicate?
What does a well-developed red color in soil indicate?
- Presence of manganese oxide
- Good drainage and aeration (correct)
- Low humidity
- High organic matter content
Why are yellow soils prevalent in regions of high humidity?
Why are yellow soils prevalent in regions of high humidity?
- Lack of iron oxides
- High magnesium content
- Presence of organic matter
- Moist soil climate (correct)
What makes grey or white soils almost invariably unproductive?
What makes grey or white soils almost invariably unproductive?
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Why may well-drained sands appear yellow in color?
Why may well-drained sands appear yellow in color?
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Why must soil lumps be broken up when describing soil color?
Why must soil lumps be broken up when describing soil color?
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What is soil defined as?
What is soil defined as?
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What does the depth of color in dark-colored soils indicate?
What does the depth of color in dark-colored soils indicate?
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Why does the color of the soil not always provide a good indication of the amount of organic matter?
Why does the color of the soil not always provide a good indication of the amount of organic matter?
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Which component holds the soil atmosphere and soil solution?
Which component holds the soil atmosphere and soil solution?
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In well-drained soils, what may varying soil color indicate?
In well-drained soils, what may varying soil color indicate?
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What contributes to the variation in soil color in different types of soils?
What contributes to the variation in soil color in different types of soils?
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