Land drainage is beneficial because:
A) it increases the water-to-air ratio in the soil pores.
B) it increases the availability of iron and manganese in acid soils.
C) it increases the alternate of expansion and contraction due to freezing and thawing of soils.
D) it increases the depth of root penetration in the soil.
E) it slows down the rate of soil warming in the spring.
D
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The War of 1812 was notable in the history of American warfare because
A. of the high level of American domestic dissent and opposition to the war. B. no talented military commanders emerged. C. of inadequate financing of the war. D. the historically high level of Americans killed and wounded in military action. E. of the nation's apathy and national disunity.
Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. Andrew Foods, Inc., produces a sweet syrup made from corn syrup and beet syrup mixed with pure sugar. For each batch, 680 lbm of beet syrup (13 percent sugar, the remainder water) and 650 lbm of corn syrup (8.0 percent sugar, the remainder water) are mixed with pure sugar and 350 lbm of water is boiled off. Determine the amount of pure sugar that needs to be added to produce an 18 percent sugar content in the final product.
What will be an ideal response?
The best example of an animal organ being used to replace a human organ is/are:
a. Cow lungs b. Pig heart valve c. Poultry heart valve d. Horse pancreas
The letters ____ are included on the drawing specifications to indicate when a left-hand thread is required.
A. LH B. LHT C. LT D. LTH