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oil spills

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by geet » Sun Jul 12, 2009 6:15 am
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 is D...do explain your logic
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Source: — Critical Reasoning |

by scoobydooby » Sun Jul 12, 2009 8:14 am
stimulus:
1) level of oil contamination immediately after the war was less than the level during prewar survey

2) level of PAHs were also low compared to the level at non war areas (baltic sea)

to resolve the paradox, we need a reason for the low levels of oil contamination+PAHs after war than otherwise.

D does resolve. if peacetime oil production and transport result in high levels of PAHs and massive oil dumping, then the levels just after war would be less as oil production slowed during the war (3rd line).

hence, D
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by james33 » Sun May 15, 2016 8:20 pm
Answer D seems to be logical one out of other answer choices
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