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Which of the following most logically completes the passage? [#permalink]
 16 Nov 2009, 04:37
Question Stats:
46% (02:01) correct
53% (00:36) wrong based on 2 sessions
Which of the following most logically completes the passage? Using new detection techniques, researchers have found trace amounts of various medicinal substances in lakes and rivers. Taken in large quantities, these substances could have serious health effects, but they are present in quantities far too low to cause any physiological response in people who drink the water or bathe in it. Nevertheless, medical experts contend that eliminating these trace amounts from the water will have public health benefits, since ____________. (A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities (B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found there (C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changed (D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substances (E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them please, provide your reasoning along with answers
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Re: new detection techniques [#permalink]
16 Nov 2009, 06:40
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barakhaiev wrote: Which of the following most logically completes the passage?
Using new detection techniques, researchers have found trace amounts of various medicinal substances in lakes and rivers. Taken in large quantities, these substances could have serious health effects, but they are present in quantities far too low to cause any physiological response in people who drink the water or bathe in it. Nevertheless, medical experts contend that eliminating these trace amounts from the water will have public health benefits, since ____________.
(A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities
(B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found there
(C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changed
(D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substances
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them
please, provide your reasoning along with answers wil go with E. looks to be the best possible answer as low concentration can make the bacteria resistant and hence when humans are infected by these bacteria treating humans will pose a problem.
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Re: new detection techniques [#permalink]
16 Nov 2009, 08:26
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(A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities shifts the focus to large quantities. We need to focus on small quantities and their removal
(B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found thereweakens the contention of medical experts
(C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changedout of scope
(D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substancesweakens the contention of medical experts
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to themCORRECT - provides the correct focus and contention
What's the OA?
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Re: new detection techniques [#permalink]
16 Nov 2009, 09:08
Yes E good explanations kp1811 wrote: barakhaiev wrote: Which of the following most logically completes the passage?
Using new detection techniques, researchers have found trace amounts of various medicinal substances in lakes and rivers. Taken in large quantities, these substances could have serious health effects, but they are present in quantities far too low to cause any physiological response in people who drink the water or bathe in it. Nevertheless, medical experts contend that eliminating these trace amounts from the water will have public health benefits, since ____________.
(A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities
(B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found there
(C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changed
(D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substances
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them
please, provide your reasoning along with answers wil go with E. looks to be the best possible answer as low concentration can make the bacteria resistant and hence when humans are infected by these bacteria treating humans will pose a problem. _________________
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Re: new detection techniques [#permalink]
18 Nov 2009, 23:43
At the beginning thought it was C, but subsequent readings make it me think the ans is E
OA please
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Re: new detection techniques [#permalink]
19 Nov 2009, 02:59
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Re: new detection techniques [#permalink]
19 Nov 2009, 07:31
Yes, it should be E
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Re: new detection techniques [#permalink]
27 Nov 2009, 02:10
E
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Re: new detection techniques [#permalink]
27 Nov 2009, 07:12
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Answer should be E. Reasoning in red.
Which of the following most logically completes the passage?
Using new detection techniques, researchers have found trace amounts of various medicinal substances in lakes and rivers. Taken in large quantities, these substances could have serious health effects, but they are present in quantities far too low to cause any physiological response in people who drink the water or bathe in it. Nevertheless, medical experts contend that eliminating these trace amounts from the water will have public health benefits, since ____________.
(A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities
Weakens the claim
(B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found there
It weakens the experts' claim
(C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changed
Treatment has nothing to do with the amounts found in water
(D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substances
Weakens the claim
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them
Can be the answer as it supports the claim and gives valid reason to itplease, provide your reasoning along with answers
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Re: new detection techniques [#permalink]
06 Aug 2011, 11:11
Was stuck between C and E , went for C and it is wrong , found the pindan explaination useful
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Re: Which of the following most logically completes the passage? [#permalink]
20 Nov 2011, 20:34
+1 E
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Re: Which of the following most logically completes the passage? [#permalink]
22 Nov 2011, 21:05
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them => correct answer. Choice E said that the existence of low concentration of medicinal substance will make those medicinal become ineffective in the long term even if high concentration of medicinal substance because bacteria become resistant with that kind of substance.
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Re: Which of the following most logically completes the passage? [#permalink]
22 Nov 2011, 21:24
+1 for E.
This is a classical Explain the Situation/paradox problem. The first step for such problems is to identify the paradox:
Premise: Harmful substances are present in quantities far too low to cause any health problems.
General Conclusion: Generally this means that medical experts would consider that eliminating these substances will have NO benefits.
Paradox/Situation: Medical experts consider that eliminating these substances WILL have health benefits.
To explain the situation, we need an answer choice which explains why general conclusion does not happen(or is not true) and paradox happens(or is true).
E explains just that by implying that harmful sustances have health implications, even if they are present in small quantities.
Crick
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Re: Which of the following most logically completes the passage? [#permalink]
22 Nov 2011, 21:38
+1 for E
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Re: new detection techniques [#permalink]
17 Jan 2012, 17:57
pindan wrote: Answer should be E. Reasoning in red.
Which of the following most logically completes the passage?
Using new detection techniques, researchers have found trace amounts of various medicinal substances in lakes and rivers. Taken in large quantities, these substances could have serious health effects, but they are present in quantities far too low to cause any physiological response in people who drink the water or bathe in it. Nevertheless, medical experts contend that eliminating these trace amounts from the water will have public health benefits, since ____________.
(A) some of the medicinal substances found in lakes and rivers are harmless to humans in large quantities
Weakens the claim
(B) some of the medicinal substances found in lakes and rivers can counteract possible harmful effects of other such substances found there
It weakens the experts' claim
(C) people who develop undesirable side effects when being treated with medicines that contain these substances generally have their treatment changed
Treatment has nothing to do with the amounts found in water
(D) most medicinal substances that reach lakes or rivers rapidly break down into harmless substances
Weakens the claim
(E) disease-causing bacteria exposed to low concentrations of certain medicinal substances can become resistant to them
Can be the answer as it supports the claim and gives valid reason to itplease, provide your reasoning along with answers I don't agree that C is out of scope. Treatment is still relevant. But the problem with C is - it says treatment medicine also contains these substances, which means those substances are not harmful and that is against the conclusion.
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Re: Which of the following most logically completes the passage? [#permalink]
25 Jan 2012, 09:57
E
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Re: Which of the following most logically completes the passage? [#permalink]
27 Jan 2012, 17:22
Agree with E
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Re: Which of the following most logically completes the passage?
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27 Jan 2012, 17:22
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