Which one of the following statements is false? Generally, sandy soil with little OM will have low CEC while clay soil with a lot of OM will have high CEC. Clays have charges due to ionizable hydrogen and isomorphous substitution The higher the CEC, the greater number of exchange sites, and the more cations a soil can hold All colloids are crystalline
Which one of the following statements is false? Overfertilization with synthetic nitrogen fertlizers leads to acidification Basic cations incude calcium, potassium, and aluminum. Organic matter can contribute to the acidifcation of soil. Emissions from power plants contributes to soil acidification Previous
Which one of the following statements is false? Soils can become acidic naturally. In the U.S. acidic soils are mostly found in areas east of the Mississippi River and in mountainous areas. Soils become acidic when there is a higher concentration of hydroxide ions. Global distribution of soil acidity is largely related to annual rainfall. « Previous
Clays are mostly made of oxygen and silicon, along with smaller amounts of aluminum, Iron and/or various other cations, depending on the proportion of minerals present when the clays were formed, True O False
Which one of the following statements is false? Generally, sandy soil with little OM will have low CEC while clay soil w
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Which one of the following statements is false? Generally, sandy soil with little OM will have low CEC while clay soil w
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