SRG13 wrote:
Zarrolou wrote:
12bhang wrote:
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 companys implementing its plan to develop the prototype?
(A) There is a considerable degree of variation in shade of color between weeds of different species.
Hi Zarrolou,
I find option A to be irrelevant to this argument but OG says it is a weakener. If this was a weakener question I am not sure if I would have chosen A.
Could you please explain why A is a weakener ? Is it because if all weeds were of the same color then it would be easy to distinguish them from the crops or is there some other reason for considering this a weakener ?
Well B looks like a good weaken option.
Appreciate your help.![:)]( "Smile")
Thanks,
Sandeep.
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 companys implementing its plan to develop the prototype?
(A) There is a considerable degree of variation in shade of color between weeds of different species.
Hi Zarrolou,
I find option A to be irrelevant to this argument but OG says it is a weakener. If this was a weakener question I am not sure if I would have chosen A.
Could you please explain why A is a weakener ? Is it because if all weeds were of the same color then it would be easy to distinguish them from the crops or is there some other reason for considering this a weakener ?
Well B looks like a good weaken option.
Appreciate your help.
Thanks,
Sandeep.
You're close, yes--A is a weakener because if the weed species have a considerable variation in shades, it will be more difficult for the machine to do what the inventor claims (distinguish between weeds and plants). Note, it doesn't follow that the machine would fail to do the job, just that it would be harder for it to do so (i.e. the risk of it not doing its job properly increases).
I'm not an instructor or anything, but be mindful of making value judgments when considering weaken/strengthen questions or choices. There is no requirement that a choice greatly strengthen or weaken to some large degree--we only want a choice that "moves the needle" (even if only slightly!) in one direction or the other.