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When the supply of a given resource dwindles, alternative [#permalink]
 04 Jun 2010, 05:44
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85% (01:49) wrong based on 0 sessions
When the supply of a given resource dwindles, alternative technologies allowing the use of different resources develop, and demand for the resource that was in short supply naturally declines. Then the existing supplies of that resource satisfy whatever demand remains. Among the once-dwindling resources that are now in more than adequate supply are flint for arrowheads, trees usable for schooner masts, and good mules. Because new technologies constantly replace old ones, we can never run out of important natural resources. Which one of the following, if true, most seriously undermines the conclusion? (A) The masts and hulls of some sailing ships built today are still made of wood. (B) There are considerably fewer mules today than there were 100 years ago. (C) The cost of some new technologies is often so high that the companies developing them might actually lose money at first. (D) Dwindling supplies of a natural resource often result in that resource’s costing more to use. (E) The biological requirements for substances like clean air and clean water are unaffected by technological change.
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Re: When the supply of a given resource dwindles [#permalink]
04 Jun 2010, 12:22
We have to pick the answer that directly undermines the conclusion, "Because new technologies constantly replace old ones, we can never run out of important natural resources."
A. may be true, but is irrelevant
B. may be true, but is irrelevant
C. outside the scope
D. may be true, but is irrelevant
E. Correct - says that there are some natural resources that can't be replaced by technology, therefore this statement undermines the conclusion.
My opinion is E
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Re: When the supply of a given resource dwindles [#permalink]
04 Jun 2010, 20:59
Why is "B" irrelevant?
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Re: When the supply of a given resource dwindles [#permalink]
05 Jun 2010, 16:52
I am with E too.
I am not sure whether B is irrelevant, but B is not correct; because there might be less mules today, but with the benefit of technology, the use of the dwindle resource (mules) might be taken over by horse or some firm grown something. But you cannot affect E through technology.
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Re: When the supply of a given resource dwindles [#permalink]
08 Jun 2010, 12:24
E for me.
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Re: When the supply of a given resource dwindles [#permalink]
01 Jul 2010, 10:09
Do we have OA? I picked E too.. @3mins phew!!!!
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Re: When the supply of a given resource dwindles [#permalink]
01 Jul 2010, 10:39
(A) The masts and hulls of some sailing ships built today are still made of wood.
(B) There are considerably fewer mules today than there were 100 years ago.
(C) The cost of some new technologies is often so high that the companies developing them might actually lose money at first.
(D) Dwindling supplies of a natural resource often result in that resource’s costing more to use.
(E) The biological requirements for substances like clean air and clean water are unaffected by technological change.
-- since there are some resources that cannot be replaced by new technology, author's conclusion come into question. Hence E weakens the argument and is the correct answer choice.
Thank You.
Thanks,
Akhil M.Parekh
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Re: When the supply of a given resource dwindles [#permalink]
02 Jul 2010, 01:20
I also maked E but confuse about the conclusion. which one if the following
1.When the supply of a given resource dwindles, alternative technologies allowing the use of different resources develop, and demand for the resource that was in short supply naturally declines.
2.Then the existing supplies of that resource satisfy whatever demand remains
3.Because new technologies constantly replace old ones, we can never run out of important natural resources.
If 3rd the the conclusion then we cannot really say E undermines the conclusion. But infact E supports the conclusion.
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Re: When the supply of a given resource dwindles
[#permalink]
02 Jul 2010, 01:20
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