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Most geologists believe oil results from chemical [#permalink]
 11 Jul 2008, 10:36
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Question Stats:
0% (00:00) correct
100% (02:49) wrong based on 2 sessions
Most geologists believe oil results from chemical transformations of hydrocarbons derived from organisms buried under ancient seas. Suppose, instead, that oil actually results from bacterial action on other complex hydrocarbons that are trapped within the Earth. As is well known, the volume of these hydrocarbons exceeds that of buried organisms. Therefore, our oil reserves would be greater than most geologists believe.
Which of the following, if true, gives the strongest support to the argument above about our oil reserves?
(A) Most geologists think optimistically about the Earths reserves of oil.
(B) Most geologists have performed accurate chemical analyses on previously discovered oil reserves.
(C) Ancient seas are buried within the Earth at many places where fossils are abundant.
(D) The only bacteria yet found in oil reserves could have leaked down drill holes from surface contaminants.
(E) Chemical transformations reduce the volume of buried hydrocarbons derived from organisms by roughly the same proportion as bacterial action reduces the volume of other complex hydrocarbons.
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Re: CR : Most geologists believe oil results [#permalink]
11 Jul 2008, 10:54
It should be E IMO.
because if both chemical transformation and bacteria are reducing hydrocarbon and complex hydrocarbons respectively to the same amount then obviously oil reserves will be more for the one which is in greater quantity beneath the earth( which is the complex hydrocarbon in this case)
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Re: CR : Most geologists believe oil results [#permalink]
11 Jul 2008, 10:55
E. tranformation ratio is same, its given that there are more complex hydrocarbin than organism
100 organism --> chemical tranformation --> 10 oil
1000 complex hydrocarbon --> bacterial reaction --> 100 oil
means there'll be more oil
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Re: CR : Most geologists believe oil results [#permalink]
03 Sep 2010, 07:26
the logic for this question is so far-fetched! I got stumped with this one.
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Re: CR : Most geologists believe oil results [#permalink]
03 Sep 2010, 09:46
IMO C ---> Reasoning that the fossils that are formed from abundant fossils strengthen the point that the earth reserves are more.
IS my reasoning flawed
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Re: CR : Most geologists believe oil results [#permalink]
03 Sep 2010, 09:48
I agree it should be E.
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Re: CR : Most geologists believe oil results [#permalink]
27 Jan 2013, 02:30
rnemani wrote: IMO C ---> Reasoning that the fossils that are formed from abundant fossils strengthen the point that the earth reserves are more.
IS my reasoning flawed even i chose C ... can anyone explain why not C??
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Re: Most geologists believe oil results from chemical [#permalink]
27 Jan 2013, 02:59
Hi, Let me try and explain. Answer C tells us that around the world there are lots of places where there are trapped seas and fossils found together. This is exactly the conditions that the opposing argument for oil creation wants. So it must weaken our argument, which is not what we want. So it is incorrect
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Re: Most geologists believe oil results from chemical
[#permalink]
27 Jan 2013, 02:59
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