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Shortly after the Persian Gulf War, investigators reported

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Shortly after the Persian Gulf War, investigators reported [#permalink] New post 21 Sep 2010, 14:39
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A
B
C
D
E

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23% (02:37) correct 78% (02:07) wrong based on 43 sessions
Shortly after the Persian Gulf War, investigators reported that the area, which had been subjected to hundreds of smoky oil fires and deliberate oil spills when regular oil production slowed down during the war, displayed less oil contamination than they had witnessed in prewar surveys of the same area. They also reported that the levels of polycyclic aromatic hydrocarbons (PAHs)—used as a marker of combustion products spewed from oil wells ignited during the war—were also relatively low, comparable to those recorded in the temperate oil producing areas of the Baltic Sea.
Which one of the following, if true, does most to resolve the apparent discrepancy in the information above?
(A) Oil contaminants have greater environmental effects in temperate regions than in desert regions.
(B) Oil contamination and PAH pollution dissipate more rapidly in temperate regions than in desert regions.
(C) Oil contamination and PAH pollution dissipate more rapidly in desert regions than in temperate regions.
(D) Peacetime oil production and transport in the Persian Gulf result in high levels of PAHs and massive oil dumping.
(E) The Persian Gulf War ended before the oil fires and spills caused as much damage as originally expected.

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Re: Persian Gulf [#permalink] New post 23 Sep 2010, 14:20
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noboru wrote:
Shortly after the Persian Gulf War, investigators reported that the area, which had been subjected to hundreds of smoky oil fires and deliberate oil spills when regular oil production slowed down during the war, displayed less oil contamination than they had witnessed in prewar surveys of the same area. They also reported that the levels of polycyclic aromatic hydrocarbons (PAHs)—used as a marker of combustion products spewed from oil wells ignited during the war—were also relatively low, comparable to those recorded in the temperate oil producing areas of the Baltic Sea.
Which one of the following, if true, does most to resolve the apparent discrepancy in the information above?
(A) Oil contaminants have greater environmental effects in temperate regions than in desert regions.
(B) Oil contamination and PAH pollution dissipate more rapidly in temperate regions than in desert regions.
(C) Oil contamination and PAH pollution dissipate more rapidly in desert regions than in temperate regions.
(D) Peacetime oil production and transport in the Persian Gulf result in high levels of PAHs and massive oil dumping.
(E) The Persian Gulf War ended before the oil fires and spills caused as much damage as originally expected.

oa to come


Can we assume that Persian gulf is a desert region, as the passage doesn't specify that. This would be an assumption on the part of the reader. Option D sounds more convincing to me. IMO D.
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Re: Persian Gulf [#permalink] New post 21 Sep 2010, 15:44
Dissipate is the key

I am choosing C , assuming persian region is a desert region.
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 00:22
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 00:29
We need to a fact which strengthens the information i.e, it should tell us why lower levels of PAH Levels was witnessed in the Gulf after the Gulf War as compared to PAH levels in the Baltic.

The best answer for this is C.
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 00:43
IMO C.
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 00:45
noboru wrote:
Shortly after the Persian Gulf War, investigators reported that the area, which had been subjected to hundreds of smoky oil fires and deliberate oil spills when regular oil production slowed down during the war, displayed less oil contamination than they had witnessed in prewar surveys of the same area. They also reported that the levels of polycyclic aromatic hydrocarbons (PAHs)—used as a marker of combustion products spewed from oil wells ignited during the war—were also relatively low, comparable to those recorded in the temperate oil producing areas of the Baltic Sea.
Which one of the following, if true, does most to resolve the apparent discrepancy in the information above?
(A) Oil contaminants have greater environmental effects in temperate regions than in desert regions.
(B) Oil contamination and PAH pollution dissipate more rapidly in temperate regions than in desert regions.
(C) Oil contamination and PAH pollution dissipate more rapidly in desert regions than in temperate regions.
(D) Peacetime oil production and transport in the Persian Gulf result in high levels of PAHs and massive oil dumping.
(E) The Persian Gulf War ended before the oil fires and spills caused as much damage as originally expected.

oa to come


It says 'displayed less oil contamination than they had witnessed in prewar surveys of the same area'. Thats my problem with C. I think D resolves the discrepancy of lower levels of contamination and PAH after the war and when compared to other peacetime areas like the baltic sea.
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 02:37
Quote:
It says 'displayed less oil contamination than they had witnessed in prewar surveys of the same area'. Thats my problem with C. I think D resolves the discrepancy of lower levels of contamination and PAH after the war and when compared to other peacetime areas like the baltic sea.



That's my reason too...

D for me.
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Re: Persian Gulf [#permalink] New post 22 Sep 2010, 02:38
D

C and D are both very close. However, I think D is a better option as it is more general and thus resolves both paradoxes, i.e., D explains why oil contamination and levels of PAH during the war in the desert region of the gulf were lower than those during prewar times in the desert region and those in the temperate Baltic region at all times.
Plus, it is mentioned in the premise that oil production slowed down during the time of war.

C only addresses the paradox between desert regions and temperate regions.
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Re: Persian Gulf [#permalink] New post 23 Sep 2010, 02:06
Cornelius wrote:
D

C and D are both very close. However, I think D is a better option as it is more general and thus resolves both paradoxes, i.e., D explains why oil contamination and levels of PAH during the war in the desert region of the gulf were lower than those during prewar times in the desert region and those in the temperate Baltic region at all times.
Plus, it is mentioned in the premise that oil production slowed down during the time of war.

C only addresses the paradox between desert regions and temperate regions.


My answer is C,because the stimuls says that Baltic sea(temperate region) is more contanimated than the persian gulf which despite being exposed to smoky oil fires,oil spills is less contaminated
I think C resolves the paradox better than D does.
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Re: Persian Gulf [#permalink] New post 23 Sep 2010, 02:39
aarthis2 wrote:
My answer is C,because the stimuls says that Baltic sea(temperate region) is more contanimated than the persian gulf which despite being exposed to smoky oil fires,oil spills is less contaminated
I think C resolves the paradox better than D does.


C does not address why the level of oil contamination after the war is less than the level witnessed in prewar surveys in the persian gulf. D addresses this.
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Re: Persian Gulf [#permalink] New post 23 Sep 2010, 19:20
Agree with meshtrap that we can not make any assumption
I pick E ..
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Re: Persian Gulf [#permalink] New post 24 Sep 2010, 18:19
Dreamy wrote:
Dissipate is the key

I am choosing C , assuming persian region is a desert region.


My pick is D. I don't think making assumption is a good idea in doing CR questions.
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Re: Persian Gulf [#permalink] New post 25 Sep 2010, 17:19
Noboru is generally slow in his replies. Checked on net and the answer is
[Reveal] Spoiler:
D
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Re: Persian Gulf [#permalink] New post 25 Sep 2010, 22:56
+1 D
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Re: Persian Gulf [#permalink] New post 03 Oct 2010, 17:10
meshtrap wrote:
Can we assume that Persian gulf is a desert region, as the passage doesn't specify that. This would be an assumption on the part of the reader. Option D sounds more convincing to me. IMO D.


Thats a very good point Meshtrap. A +1 to you.
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Re: Persian Gulf [#permalink] New post 04 Oct 2010, 09:22
Cool!
although I fell for C like some other guys, after that I noticed my mistake :)
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Re: Persian Gulf [#permalink] New post 04 Oct 2010, 22:50
clearly a,b,c are out
only d makes sense
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Re: Persian Gulf [#permalink] New post 24 Oct 2010, 03:40
+1 D
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Re: Persian Gulf   [#permalink] 24 Oct 2010, 03:40
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