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Early in the twentieth century, Lake Konfa became very

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Early in the twentieth century, Lake Konfa became very [#permalink] New post 03 May 2009, 23:03
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Early in the twentieth century, Lake Konfa became very polluted. Recently fish populations have recovered as release of industrial pollutants has declined and the lak waters have become cleaner. Fears are now being voiced that the planned construction of an oil pipeline across the lake’s bottom might revive pollution and cause the fish population to decline again. However, a technology for preventing leaks is being installed. Therefore, provided this technology is effective, those fears are groundless.
The argument depends on assuming which of the following?
A. Apart from development related to the pipeline, there will be no new industria development around the lake that will create renewed pollution in its waters.
B. Other than the possibility of a leak, there is no realistic pollution threat posed to the lake by the pipeline’s construction.
C. There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa.
D. Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause.
E. The species of fish that are present in Lake Konfa now are the same as those that were in the lake before it was affected by pollution.

[Reveal] Spoiler: My Take
My pick is B. I do not have OA. Please post OA if you have.
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Re: CR: Lake Konfa [#permalink] New post 03 May 2009, 23:24
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Yeah, the same like yours, IMO B

Early in the twentieth century, Lake Konfa became very polluted. Recently fish populations have recovered as release of industrial pollutants has declined and the lake waters have become cleaner. Fears are now being voiced that the planned construction of an oil pipeline across the lake’s bottom might revive pollution and cause the fish population to decline again. However, a technology for preventing leaks is being installed. Therefore, provided this technology is effective, those fears are groundless.
The argument depends on assuming which of the following?
A. Apart from development related to the pipeline, there will be no new industrial development around the lake that will create renewed pollution in its waters --> the argument just mentions about the planned construction of a pipeline, not about any other industrial development. The assumption will only prove that the argument has ground to develop, and is too narrow to provide ground for irrelevant fact to develop too
B. Other than the possibility of a leak, there is no realistic pollution threat posed to the lake by the pipeline’s construction --> Using the negating technique, if there is possibility that other threat can pose pollution to the lake, the fact that new techonology will prevent leak can't help completedly demolish the pollution to the lake. Therefore, the fears are still considerable. hence, Pick up this choice
C. There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa -->Assuming that this is true, but even when oil leaks to the lake, no facts state that oil-leaking is polluted to the lake. So, this is uncertainty
D. Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause --> Negating this choice: leak of oil from the pipeline can cause more than one damage to the lake. So what ??? it does not weaken the argument that the techonology is inffective and that the fears is not groundless. So eliminate this
E. The species of fish that are present in Lake Konfa now are the same as those that were in the lake before it was affected by pollution -->
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Re: CR: Lake Konfa [#permalink] New post 04 May 2009, 01:08
priyankur_saha@ml.com wrote:
Early in the twentieth century, Lake Konfa became very polluted. Recently fish populations have recovered as release of industrial pollutants has declined and the lak waters have become cleaner. Fears are now being voiced that the planned construction of an oil pipeline across the lake’s bottom might revive pollution and cause the fish population to decline again. However, a technology for preventing leaks is being installed. Therefore, provided this technology is effective, those fears are groundless.
The argument depends on assuming which of the following?
A. Apart from development related to the pipeline, there will be no new industria development around the lake that will create renewed pollution in its waters.
B. Other than the possibility of a leak, there is no realistic pollution threat posed to the lake by the pipeline’s construction.
C. There is no reason to believe that the leak-preventing technology would be ineffective when installed in the pipeline in Lake Konfa.
D. Damage to the lake’s fish populations would be the only harm that a leak of oil from the pipeline would cause.
E. The species of fish that are present in Lake Konfa now are the same as those that were in the lake before it was affected by pollution.

My pick is B. I do not have OA. Please post OA if you have.


C is the best

If there is reason to believe, the fears are ground
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Re: CR: Lake Konfa [#permalink] New post 04 May 2009, 01:54
I will also go with B. The conclusion is already conditional "provided this technology is effective....". Hence, C does not do any value add.
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Re: CR: Lake Konfa [#permalink] New post 04 May 2009, 14:34
B, imo

argument assumes that there is no other source of pollution other than the leaks and thats what B says
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Re: CR: Lake Konfa [#permalink] New post 04 May 2009, 14:41
I would go with B.
I used Assumption negation technique and find out both B and C are attractive. however B looks more attractive to me as B fills the gap
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Re: CR: Lake Konfa [#permalink] New post 04 May 2009, 15:30
B for me
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Re: CR: Lake Konfa [#permalink] New post 05 May 2009, 10:44
C for me.
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Re: CR: Lake Konfa [#permalink] New post 05 May 2009, 20:40
Second look, Agree B is the best. C is misleading
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Re: CR: Lake Konfa [#permalink] New post 05 May 2009, 20:57
agree with B.
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Re: CR: Lake Konfa [#permalink] New post 06 May 2009, 08:57
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It's funny how I get this question correct in the forum, but then get it incorrect while taking the practice Test this weekend. :?

This is a GMATPrep question. OA is C.

The conclusion is actually "those fears are groundless", not "this technology is effective".

The latter is the premise. If you mistakenly identified that as the conclusion, then you would have chosen B incorrectly.



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Re: CR: Lake Konfa [#permalink] New post 06 May 2009, 10:31
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bigfernheard,

You are consistenent in choosing the Answers, but unfortunately both are incorrect.

Option C in the original question (Priyankumar posted) and Optiion B ( in GMAT PREP posted by you) are same. Both are wrong.


here B is the correct answer.


Option C --> in GMATPRE is totall differrent, and agree with that answer.
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Re: CR: Lake Konfa [#permalink] New post 06 May 2009, 10:47
Good catch. Thanks. Atleast i'm consistent :|

x2suresh wrote:
bigfernheard,

You are consistenent in choosing the Answer, but unfortunately both are incorrect.

Option C in the original question (Priyankumar posted) and Optiion B ( in GMAT PREP posted by you) are same. Both are wrong.


here B is the correct answer.


Option C --> in GMATPRE is totall differrent, and agree with that answer.
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Re: CR: Lake Konfa [#permalink] New post 08 Sep 2009, 11:53
But...although remnant pollution were stirred to the water...the technology could prevent any danger, could not?
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Re: CR: Lake Konfa [#permalink] New post 29 Dec 2010, 12:07
noboru wrote:
But...although remnant pollution were stirred to the water...the technology could prevent any danger, could not?


nobody is going to clarify this?
thanks
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Re: CR: Lake Konfa [#permalink] New post 29 Dec 2010, 12:29
+1 B

noboru, could you elaborate more your question, please?

Thanks!
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Re: CR: Lake Konfa [#permalink] New post 29 Dec 2010, 13:18
metallicafan wrote:
+1 B

noboru, could you elaborate more your question, please?

Thanks!


Sorry, I have read it again and my question does not make sense at all. I thought that any pollution could be removed by the technology but the technology only works for preventing leaks, so B is the answer.

Thanks!
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Re: CR: Lake Konfa [#permalink] New post 07 Aug 2011, 00:00
Why is A opted out , how does one know that industrail development effects are not being taken into consideration here ??
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Re: CR: Lake Konfa [#permalink] New post 07 Aug 2011, 01:06
+1 for B.

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Re: CR: Lake Konfa [#permalink] New post 23 Aug 2011, 17:35
I go for B after careful reconsideration.

The conclusion should be:
Because the techology of preventing leaking is effective, there is no need to worry about any polution.

However, B provide another consideration may weaken the conclusion. The oil construction itself may cause pollution.

While C, at first glance looks good, but dont you think it kind of deny the premise of the passage. The passage believe the effectiveness of the technology.
Re: CR: Lake Konfa   [#permalink] 23 Aug 2011, 17:35
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