SWES 200 Exam 1 2008 - SWES 200 Introduction to Soil...

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1 SWES 200 Introduction to Soil Science Name __________________________ Examination I February 7, 2008 Row _____ Seat number _____ True or False (1 point each) 1. T or F A “calcic” horizon denotes the same thing as a Bt horizon. 2. T or F In addition to providing soil descriptions, soil survey reports can indicate whether a soil is suitable for septic tank installation. 3. T or F Loess is aeolian deposited material. 4. T or F An AE horizon is an A horizon found in a highly eroded soil. 5. T or F Secondary minerals are re-crystallized products of the chemical breakdown and/or alteration of primary minerals. 6. T or F In most B horizons one of the dominant processes of soil formation has been eluviation. 7. T or F The dominant parent material for most flood plain soil is colluvial. 8. T or F Exfoliation is the process by which surface layers of rock peel away as a result of expansion and contraction that accompanies changes in temperature. Multiple Choice (3 points each) 9. A “mollic” diagnostic horizon denotes an: a. Accumulation of clay in a subsurface horizon b. Accumulation of organic matter in a surface horizon c. Accumulation of organic matter in a subsurface horizon d. Accumulation of salt in a subsurface horizon 10. An “argillic” diagnostic horizon denotes an: a. Accumulation of clay in a subsurface horizon b. Accumulation of organic matter in a surface horizon c. Accumulation of organic matter in a subsurface horizon d. Accumulation of salt in a subsurface horizon
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2 11. Which is the most specific level of soil classification? a. Great group b. Series c. Species d. Order 12. A common soil order in Canada is most likely to be: a. Ultisol b. Mollisol c. Spodosol d. Oxisol 13. A common soil order in Costa Rica or Cuba is most likely to be: a. Gelisol b. Mollisol c. Spodosol d. Oxisol 14. Other things being equal, soils will form most rapidly from ___________ rocks. a.
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This note was uploaded on 04/03/2008 for the course SWES 200 taught by Professor Walworth during the Spring '08 term at University of Arizona- Tucson.

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SWES 200 Exam 1 2008 - SWES 200 Introduction to Soil...

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