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Environmentalist:When bacteria degrade household cleaning products, va

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Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 19 Oct 2019, 12:51
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Environmentalist:When bacteria degrade household cleaning products, vapors that are toxic to humans are produced. Unfortunately, household cleaning products are often found in landfills. Thus, the common practice of converting landfills into public parks is damaging human health.

Which one of the following is an assumption the environmentalist’s argument requires?

(A) In at least some landfills that have been converted into public parks there are bacteria that degrade household cleaning products.
(B) Converting a landfill into a public park will cause no damage to human health unless toxic vapors are produced in that landfill and humans are exposed to them.
(C) If a practice involves the exposure of humans to vapors from household cleaning products, then it causes at least some damage to human health.
(D) When landfills are converted to public parks, measures could be taken that would prevent people using the parks from being exposed to toxic vapors.
(E) If vapors toxic to humans are produced by the degradation of household cleaning products by bacteria in any landfill, then the health of at least some humans will suffer.

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Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 19 Oct 2019, 18:19
Akela wrote:
Environmentalist:When bacteria degrade household cleaning products, vapors that are toxic to humans are produced. Unfortunately, household cleaning products are often found in landfills. Thus, the common practice of converting landfills into public parks is damaging human health.

Which one of the following is an assumption the environmentalist’s argument requires?


I feel it is a fairly straight forward one.

Pre-thinking: The author basically assumed that even after the converting landfills into public parks, there will be bacteria which will degrade the household cleaning products.

Quote:
(A) In at least some landfills that have been converted into public parks there are bacteria that degrade household cleaning products. - Looks fine. And the wording is careful too. "at least some" and the fact that "landfills have been converted into parks". Keep A.
(B) Converting a landfill into a public park will cause no damage to human health unless toxic vapors are produced in that landfill and humans are exposed to them. - It is a bit extreme. But more importantly, We don't know what other factors will cause the damage. So the mention of "unless toxic vapors" is not accurate as per the passage.
(C) If a practice involves the exposure of humans to vapors from household cleaning products, then it causes at least some damage to human health. - The author has already told us that it will cause damage to human health. So we don't need that assumption.
(D) When landfills are converted to public parks, measures could be taken that would prevent people using the parks from being exposed to toxic vapors. - Well then what is the point of the argument?
(E) If vapors toxic to humans are produced by the degradation of household cleaning products by bacteria in any landfill, then the health of at least some humans will suffer. - Again, we already know it is damaging to human health. Restating it in different forms won't help us in any way.

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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 19 Oct 2019, 21:59
I did not get this question. Can someone explain in bit more detail why A is the right answer? I really thought that bacteria, by default, are present "everywhere". Is that an "assumption" here?
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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 19 Oct 2019, 22:18
Ruchirkalra wrote:
I did not get this question. Can someone explain in bit more detail why A is the right answer? I really thought that bacteria, by default, are present "everywhere". Is that an "assumption" here?


Ruchirkalra
Hello,
It is true that bacteria are present every where by default. But it depends on the context too. The option A does not state just the bacteria. It is about the overall sentence "presence of bacteria in the landfills that have been converted into parks".
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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 20 Oct 2019, 10:25
I narrowed it down to A or E and picked the wrong one in the end. Both mention that bacteria is present in landfills for the process of degradation.

For those of who are wondering how to eliminate E, the word "any landfill" is extreme and therefore should be eliminated.
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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 20 Oct 2019, 23:54
TheNightKing wrote:
Ruchirkalra wrote:
I did not get this question. Can someone explain in bit more detail why A is the right answer? I really thought that bacteria, by default, are present "everywhere". Is that an "assumption" here?

Hello,
It is true that bacteria are present every where by default. But it depends on the context too. The option A does not state just the bacteria. It is about the overall sentence "presence of bacteria in the landfills that have been converted into parks".

Thanks for the clarification. Overall, found this question tough.
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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 21 Oct 2019, 04:43
i took 4 minutes to solve this question.. maybe this is an easy question for some.. but not for me.

we have to use the Assumption Negation technique and a bit of prethinking for this one
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Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 21 Oct 2019, 05:15
Akela wrote:
Environmentalist:When bacteria degrade household cleaning products, vapors that are toxic to humans are produced. Unfortunately, household cleaning products are often found in landfills. Thus, the common practice of converting landfills into public parks is damaging human health.

Which one of the following is an assumption the environmentalist’s argument requires?

(A) In at least some landfills that have been converted into public parks there are bacteria that degrade household cleaning products.
(B) Converting a landfill into a public park will cause no damage to human health unless toxic vapors are produced in that landfill and humans are exposed to them.
(C) If a practice involves the exposure of humans to vapors from household cleaning products, then it causes at least some damage to human health.
(D) When landfills are converted to public parks, measures could be taken that would prevent people using the parks from being exposed to toxic vapors.
(E) If vapors toxic to humans are produced by the degradation of household cleaning products by bacteria in any landfill, then the health of at least some humans will suffer.


The common practice of converting landfills into public parks is damaging human health- FOR this conclusion to be true what else needed to be true.
Start with E- If vapour toxic to humans are produced........We are interested in landfills which are getting converted into public park. Here no mention of public park makes this choice irrelevant.
D-What do we do with measures? This choice has no bearing on the conclusion since truthfulness of this choice does not have any relevance to the conclusion.
C-Again no mention of public park.
B-we are interested in the case where practice is damaging to human health.
A- You can get this choice either with POE or negation.
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Re: Environmentalist:When bacteria degrade household cleaning products, va  [#permalink]

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New post 21 Oct 2019, 22:55
I did not understand the explanation. This is what I have understood from the argument:

Bacteria degrades products --> release toxic vapours. Products found in landfills --> Landfills are converted into parks --> Parks damage human health.

1. Household dispose degraded products, not products they are using.
2. If landfills are converted into parks already, households would choose landfills not parks to dispose products.

Then, the toxic vapours in parks must be due to the presence of already degraded products, not the bacteria.

Quote:
(A) In at least some landfills that have been converted into public parks there are bacteria that degrade household cleaning products.


Negate this answer choice, no landfills that have been converted into public parks have bacteria that degrade household cleaning products.

Parks might contain already degraded products which is damaging human health. So, even without any presence of bacteria in the landfill-converted parks, these parks are damaging human health.

If Assumption Negation Technique (ANT) fails to collapse the conclusion, then it is not the right assumption.

Can somebody explain where did I go wrong ?

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Re: Environmentalist:When bacteria degrade household cleaning products, va   [#permalink] 21 Oct 2019, 22:55
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