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Q31 which of the following most logically completes

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Q31: Which of the following most logically completes the argument below? Davison River farmers are currently deciding between planting winter wheat this fall or spring wheat next spring. Winter wheat and spring wheat are usually about equally profitable. Because of new government restrictions on the use of Davison River water for irrigation, per acre yields for winter wheat, though not for spring wheat, would be much lower than average. Therefore, planting spring wheat will be more profitable than planting winter wheat, since ‗‗‗‗‗‗. A. the smaller-than-average size of a winter wheat harvest this year would not be compensated for by higher winter wheat prices B. new crops of spring wheat must be planted earlier than the time at which standing crops of winter wheat are ready to be harvested C. the spring wheat that farmers in the Davison River region plant is well adapted to the soil of the region D. spring wheat has uses that are different from those of winter wheat E. planting spring wheat is more profitable than planting certain other crops, such as rye Answer: ------------------------------------------------------------------------------------------------------------ Q32: To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility. ------------------------------------------------------------------------------------------------------------ Q33: 30
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A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding. Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype? A. There is a considerable degree of variation in shade of color between weeds of different species. B. The shade of color of some plants tends to change appreciably over the course of their growing season. C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds. D. Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics. E. Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
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