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The level of sulfur dioxide in the atmosphere

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The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 12 Mar 2017, 04:10
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66% (01:11) correct 34% (01:14) wrong based on 224 sessions

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The level of sulfur dioxide in the atmosphere is slightly higher than it was ten years ago. This increase is troubling because ten years ago the Interior Ministry imposed new, stricter regulations on emissions from coal-burning power plants. If these regulations had been followed, then the level of sulfur dioxide in the atmosphere would have decreased.

Which one of the following can be properly inferred from the statements above?

(A) If current regulations on emissions from coal-burning power plants are not followed from now on, then the level of sulfur dioxide in the atmosphere will continue to increase.

(B) There have been violations of the regulations on emissions from coal-burning power plants that were imposed ten years ago.

(C) If the regulations on emissions from coal-burning power plants are made even stronger, the level of sulfur dioxide in the atmosphere still will not decrease.

(D) Emissions from coal-burning power plants are one of the main sources of air pollution.

(E) Government regulations will never reduce the level of sulfur dioxide in the atmosphere

Source: LSAT
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Re: The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 12 Mar 2017, 04:48
ganand wrote:
The level of sulfur dioxide in the atmosphere is slightly higher than it was ten years ago. This increase is troubling because ten years ago the Interior Ministry imposed new, stricter regulations on emissions from coal-burning power plants. If these regulations had been followed, then the level of sulfur dioxide in the atmosphere would have decreased.

Which one of the following can be properly inferred from the statements above?

(A) If current regulations on emissions from coal-burning power plants are not followed from now on, then the level of sulfur dioxide in the atmosphere will continue to increase.

(B) There have been violations of the regulations on emissions from coal-burning power plants that were imposed ten years ago.

(C) If the regulations on emissions from coal-burning power plants are made even stronger, the level of sulfur dioxide in the atmosphere still will not decrease.

(D) Emissions from coal-burning power plants are one of the main sources of air pollution.

(E) Government regulations will never reduce the level of sulfur dioxide in the atmosphere

Source: LSAT


The argument implies that these regulations had not been followed. This lead to the choice B.
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Re: The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 02 Apr 2017, 07:16
Option B seems to be given in the passage, thus not really a new information.
Option A is more forward looking, hence looks more like and inference.

Why is A wrong?
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The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 03 Apr 2017, 13:18
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The level of sulfur dioxide in the atmosphere is slightly higher than it was ten years ago. This increase is troubling because ten years ago the Interior Ministry imposed new, stricter regulations on emissions from coal-burning power plants. If these regulations had been followed, then the level of sulfur dioxide in the atmosphere would have decreased.

Which one of the following can be properly inferred from the statements above?

(A) If current regulations on emissions from coal-burning power plants are not followed from now on, then the level of sulfur dioxide in the atmosphere will continue to increase.
we cannot imply this for the future as the levels may or may not increase.

(B) There have been violations of the regulations on emissions from coal-burning power plants that were imposed ten years ago.
Correct answer since the regulations were imposed but the pollution is still increasing.That means there has been a violation in the regulation.

(C) If the regulations on emissions from coal-burning power plants are made even stronger, the level of sulfur dioxide in the atmosphere still will not decrease.
The decrease in the levels is not deisccused,so out of scope.

(D) Emissions from coal-burning power plants are one of the main sources of air pollution.
Air pollution is out of scope as we are only discussing sulpher dioxide.

(E) Government regulations will never reduce the level of sulfur dioxide in the atmosphere
No such point.
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The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 04 Apr 2017, 04:50
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guialain wrote:
Option B seems to be given in the passage, thus not really a new information.
Option A is more forward looking, hence looks more like and inference.

Why is A wrong?


A says if these regulations are not followed, there will be an increase in SO2. But what is we do something else apart from these regulations. In that case, A would be invalid. So, determining the future like this would be wrong.

B is correct because it is proving the point that the regulations were created but not followed and if followed could help.
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Re: The level of sulfur dioxide in the atmosphere  [#permalink]

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New post 08 Apr 2017, 10:17
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Let us simplify the argument --

Context
SO2 levels higher than they were 10 years ago + 10 years ago ministry imposed stricter regulations on coal burning power plants -------(1)

Argument
If regulations had been followed --> level of SO2 would have decreased ---------(2)

from (1) we know that levels of SO2 have not decreased but have risen. Hence, we can conclude that --
regulations have not been followed

Which answer option states this? Option B.

Option A - Incorrect
Not necessarily. Maybe the level of SO2 has hit a saturation point (because of natural processes) and not regulating emissions would not really increase SO2 levels in the atmosphere.
It is also possible that cleaner power producing technology is invented in the near future and hence coal-burning plants would be rendered obsolete. Not regulating such plants' emissions would not necessarily mean increase in emissions.

Option C - Incorrect
We cannot infer this. Probably if the regulations are made even stronger, they might get imposed everywhere and thus SO2 levels would decrease.

Option D - Incorrect
We know that coal-burning power plants emit SO2 into the atmosphere but we are unsure whether such plants are the "main" source of air pollution.

Option E - Incorrect
We cannot make predictions for all time just based on data from past 10 years. Too extreme.
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Re: The level of sulfur dioxide in the atmosphere &nbs [#permalink] 08 Apr 2017, 10:17
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