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A company plans to develop a prototype weeding machine that [#permalink]
 06 Jan 2008, 07:25
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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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Re: cr- consideration in favour [#permalink]
06 Jan 2008, 08:11
D
If some method can ensure a standard color either for the crops or the weeds the plan becomes effective.
in D methods ensure crops will have same color hence is in line with the company's plan
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Re: cr- consideration in favour [#permalink]
06 Jan 2008, 08:22
klepto wrote: D
If some method can ensure a standard color either for the crops or the weeds the plan becomes effective.
in D methods ensure crops will have same color hence is in line with the company's plan ok
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Re: cr- consideration in favour [#permalink]
07 Jan 2008, 06:04
D it is
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Re: cr- consideration in favour [#permalink]
20 Feb 2008, 19:36
c? What is the OA?
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Re: cr- consideration in favour [#permalink]
21 Feb 2008, 07:29
I thought C too.
Since it favors the plan.
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Re: cr- consideration in favour [#permalink]
21 Feb 2008, 07:56
would say D. It favors the use of the machine as there won't be any variable factor as color.
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Re: cr- consideration in favour [#permalink]
21 Feb 2008, 08:29
D
--
C doesn't have any relation with weeding machine
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Re: cr- consideration in favour
[#permalink]
21 Feb 2008, 08:29
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