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Not all life depends on energy from sunlight. Microbial life has been
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17 Jul 2008, 14:01
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E
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Question Stats:
52% (01:47) correct 48% (02:01) wrong based on 323 sessions
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Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth through vents in the ocean floor.
The statements above, if true, best support which of the following as a conclusion?
(A) The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth.
(B) Bacteria are able to exist at the molten center of the Earth.
(C) A thorough survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life.
(D) Life probably exists on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases.
(E) Finding bacterial remains in coal and oil would establish that the bacteria had been feeding on substances that had not been produced from the energy of sunlight.
Re: Not all life depends on energy from sunlight. Microbial life has been
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07 Aug 2008, 04:53
perfectstranger wrote:
Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth through vents in the ocean floor. The statements above, if true, best support which of the following as a conclusion?
(A) The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth. (B) Bacteria are able to exist at the molten center of the Earth. (C) A thorough survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life. (D) Life probably exists on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases. (E) Finding bacterial remains in coal and oil would establish that the bacteria had been feeding on substances that had not been produced from the energy of sunlight.
Can anyone please explain the answer of that question?
Clear C.
A. Don't know anything about volcanic vents B. Don't know anything about molten center of Earth C. Correct -- Bacteria has been found well below the surface of the Earth D. Probably is too strong -- Passage gives no sense of probability E. The bacteria itself does not need direct sunlight but could be feeding on sunlight-produced substances that trickled down from the Earth's surface
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08 Aug 2008, 19:21
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perfectstranger wrote:
Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth through vents in the ocean floor. The statements above, if true, best support which of the following as a conclusion?
(A) The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth. -> this is incorrect as conclution since it does not present the main point of not all life depends on sunlight (B) Bacteria are able to exist at the molten center of the Earth. -> this is just an evidence not a conclution (C) A thorough survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life. -> this is apt since from the above passage we know main point is not all life depends o sunlight and evidences are of microbes,bacteria.Hence just looking at surface species presence we cannot comment on life on a planet .deep oceans and underneath earth need to be looked into (D) Life probably exists on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases. -> OOS (E) Finding bacterial remains in coal and oil would establish that the bacteria had been feeding on substances that had not been produced from the energy of sunlight. -> Just an evidence
Can anyone please explain the answer of that question?
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08 Aug 2008, 19:27
perfectstranger wrote:
Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth through vents in the ocean floor. The statements above, if true, best support which of the following as a conclusion?
(A) The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth. (B) Bacteria are able to exist at the molten center of the Earth. (C) A thorough survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life. (D) Life probably exists on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases. (E) Finding bacterial remains in coal and oil would establish that the bacteria had been feeding on substances that had not been produced from the energy of sunlight.
Can anyone please explain the answer of that question?
IMO C)
The para clearly states that life can exist in ocean beds and other places so scanning just surface will not ensure whether life exists or not
Re: Not all life depends on energy from sunlight. Microbial life has been
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28 Feb 2013, 08:04
My take: E
Conclusion is " Not all life depends on energy from sunlight" and as per Powerscore Bible, the answer to this question should be related to the conclusion. Option E, clearly supports that bacteria's have been found in coal and oil and do not require energy from sunlight...
Re: Not all life depends on energy from sunlight. Microbial life has been
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18 May 2013, 22:11
OA:C (as per OG11)
Initially I chose (E).However, I was mislead to the answer as choice (C) clearly states that just surveying the surface for existence of life is wrong.Nevertheless, option (C) indirectly states the conclusion that is mentioned in the first line of the given passage.
(C). Some life exists even under the surface => Just surveying surface won't do=> Not all life depends on energy from sunlight.
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19 May 2013, 07:43
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jainmay wrote:
My take: E
Conclusion is " Not all life depends on energy from sunlight" and as per Powerscore Bible, the answer to this question should be related to the conclusion. Option E, clearly supports that bacteria's have been found in coal and oil and do not require energy from sunlight...
Please correct me if i am wrong...
E strengthens the argument. Conclusion should either summarize what is stated in the premises or use the premises as facts to prove a point. E serves as an evidence to support the fact "Not all life depends on energy from sunlight".
C is correct here. It captures the essence of the premises. Since organisms have been found to survive beyond the surface of earth, it could be the case of any other planet as well. Hence, a survey on the surface of any planet is insufficient to ascertain the non-existence of life in that planet.
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Re: Not all life depends on energy from sunlight. Microbial life has been
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29 May 2016, 10:02
perfectstranger wrote:
Not all life depends on energy from sunlight. Microbial life has been found in bedrock more than five kilometers below the surface of the Earth, and bacteria have been found on the deep ocean floor feeding on hydrogen and other gases rising from the interior of the Earth through vents in the ocean floor. The statements above, if true, best support which of the following as a conclusion?
(A) The location in the bedrock where microbial life was found was not near a system of volcanic vents through which hydrogen and other gases rose from the interior of the Earth. (B) Bacteria are able to exist at the molten center of the Earth. (C) A thorough survey of a planet's surface is insufficient to establish beyond a doubt that the planet contains no life. (D) Life probably exists on Sun-orbiting comets, which are cold agglomerations of space dust and frozen gases. (E) Finding bacterial remains in coal and oil would establish that the bacteria had been feeding on substances that had not been produced from the energy of sunlight.
Can anyone please explain the answer of that question?
The answer is clearly C. The problem with E is that it concludes that if bacteria is found anywhere ( coal and oil in this instance), it proves that they had been feeding on substances that had not been produced by sunlight. This is not he conclusion of the argument. Answer choice C clearly captures the essence of the argument i.e. Not all argument depends on sunlight. For evidence - microbial life and bacteria - both examples given of life forms existing not on the surface of the planet.)
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Re: Not all life depends on energy from sunlight. Microbial life has been
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