True/False
Indicate whether the sentence or statement is true or
false.
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| 1. | The Principal forms of soil
structure include platy, prismatic, columnar, blocky, and granular.
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| 2. | A slope of five percent is
equal to a rise of five feet over a distance of 25 feet.
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| 3. | Land Capability Class IIIw land
that has been artificially drained should not be used for an intensive cropping system.
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| 4. | Erosion will not take place on
land with 1 percent slope.
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| 5. | Lack of sufficient oxygen in a
saturated soil inhibits root growth of most crops in Ohio.
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| 6. | Gravel is a rounded or angular
fragment of rock 2 millimeters to 3 inches in diameter.
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| 7. | Soils that are sandy throughout
the profile are always well drained.
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| 8. | Well-developed soils typically
occur on floor plains.
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| 9. | Returning crop residues to the
soil increases the capacity of soil to hold water available to plants.
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| 10. | The dominant color soils is
called the “matrix” color and the less extensive color is the
“mottles”.
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| 11. | The shorter the duration of
saturation in soils, the more extensive the gray colors are.
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| 12. | Percolation is the downward
entry of water into the surface of the soil.
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| 13. | A soil with a higher
infiltration rate will tend to yield a lower runoff rate than a soil with a lower infiltration
rate.
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| 14. | All flood plain soils are
Capability Class V.
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| 15. | A soil with a clayey surface
texture is more susceptible to erosion than a silty surface texture.
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| 16. | Topsoil generally becomes
lighter colored as the amount of organic matter increases.
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| 17. | Management practices which are
used to overcome soil limitations will change the site’s land capability class.
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| 18. | A soil with a uniform gray
color in the soil profile is not always an indicator of seasonal saturation.
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| 19. | Soil tilth is an important
property of the substratum.
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| 20. | Soil structure refers to the
relative amounts of sand, silt, and clay in the soil.
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