SWES 200Introduction to Soil ScienceName________________________Quiz 7Due Thursday March 6Row ________ Seat ___________1.Give the common forms of the following elements that you would be most likely to findin aerobic and anaerobic soils:ElementAerobic soilAnaerobic soil34NNONH-+4SSOS , S-2o-2FeFeFe+3+2MnMnMn+4+22.Compared to the atmosphere above the soil, does the soil air have more, less, or the sameamounts of the following?2Oless2HOmore2COmore3.Soils are sometimes covered with plastic mulches to increase soil temperature. Which ofthe following covers increases soil temperature the most? Explain why.a.Clear mostb.Whiteleastc.BlackmiddleExplanation: White plastic reflects solar radiation (has the highest albedo). The blackplastic has the lowest albedo, but the plastic itself heats up and the heat must betransferred through the air below the plastic (which is a good thermal insulator) to the
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