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Neighboring landholders: Air pollution from the giant aluminum refiner

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Neighboring landholders: Air pollution from the giant aluminum refiner  [#permalink]

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New post 31 Aug 2018, 07:07
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Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants.
Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi.

Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?


(A) The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery.

(B) The neighboring landholders have made no change in the way they take care of their plants.

(C) Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive.

(D) Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.

(E) The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years.

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Neighboring landholders: Air pollution from the giant aluminum refiner  [#permalink]

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New post Updated on: 31 Aug 2018, 07:33
Bunuel wrote:
Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants.
Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi.

Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?


(A) The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery.

(B) The neighboring landholders have made no change in the way they take care of their plants.

(C) Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive.

(D) Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.

(E) The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years.


Weakness in reasoning of company spokesperson- Pollution from the refinery has no bearing on damaged crop, insects and fungi are to be blamed. This statement is not backed by any solid fact

(A) The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery. Incorrect

(B) The neighboring landholders have made no change in the way they take care of their plants. Incorrect

(C) Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive. Correct

(D) Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.Incorrect

(E) The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years. Incorrect
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Originally posted by aghosh54 on 31 Aug 2018, 07:25.
Last edited by aghosh54 on 31 Aug 2018, 07:33, edited 1 time in total.
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Re: Neighboring landholders: Air pollution from the giant aluminum refiner  [#permalink]

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New post 31 Aug 2018, 07:27
CONCLUSION : The refinery is not to blame


Quote:
(A) The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery.

All the statements in the arguments must be imagined to be true.we need to imagine that study included all the cases. So, eliminate it

Quote:
(B) The neighboring landholders have made no change in the way they take care of their plants.
out of scope -eliminate it.

Quote:
(C) Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive.
Its the weakener.Keep it.

Quote:
(D) Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.
same as A -Its tempting but company has already mentioed that its not because of pollution but because of insects and .... so eliminate it

(E) The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years. No need of past data to weaken the conclusion.irrelevant -eliminate it

C is the answer.!
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Re: Neighboring landholders: Air pollution from the giant aluminum refiner  [#permalink]

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New post 31 Aug 2018, 09:15
Neighboring landholders: Air pollution from the giant aluminum refinery that has been built next to our land is killing our plants.
Company spokesperson: The refinery is not to blame, since our study shows that the damage is due to insects and fungi.

Which of the following, if true, most seriously weakens the conclusion drawn by the company spokesperson?


(A) The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery. - Ww are not concerned about quantity of pollutants

(B) The neighboring landholders have made no change in the way they take care of their plants. - Even if the neighbouring landholders haven't made any changes, but w edo not know if the refinery is to be blamed. That doesn't weaken our conclusion

(C) Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive. - Correct. This clearly tells us that the insects and fungi are caused by air pollution from refinery. So it is refinery to be blamed.

(D) Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery. - Out of scope

(E) The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years. - Again irrelevant

IMO C
Re: Neighboring landholders: Air pollution from the giant aluminum refiner &nbs [#permalink] 31 Aug 2018, 09:15
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