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Five hundred million different species of living creatures

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Five hundred million different species of living creatures [#permalink]

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New post 25 Feb 2012, 11:46
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A
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Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

Any idea what will be the correct answer guys? I am confused between D and E.
[Reveal] Spoiler: OA

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Re: Five hundred million different species of living creatures [#permalink]

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New post 25 Feb 2012, 15:07
A, C, and D ("of them" = unnecessary) are awkward, so eliminated.

B and E both work but E sounds better. What's the OA?
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Re: Five hundred million different species of living creatures [#permalink]

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New post 25 Feb 2012, 15:18
It is E and I got your point. Thanks.
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Re: Five hundred million different species of living creatures [#permalink]

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New post 25 Feb 2012, 19:42
E. Have vanished - doesn't require "of them have vanished"
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Re: Five hundred million different species of living creatures [#permalink]

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New post 25 Feb 2012, 21:37
enigma123 wrote:
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

Any idea what will be the correct answer guys? I am confused between D and E.


Hi,

+ 1 E

The question says that out of the 500 Mil species, 99% have vanished & you have to seek this relationship
A,B,C are eliminated since they cannot establish the above relationship

D - "0f 500 million" => that there could be even 1000 Million species & 99% of the 500 Million disappeared which is wrong
E = the adding of the makes it specific thus is correct

Hope this helps :-D
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Re: Five hundred million different species of living creatures [#permalink]

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New post 27 Feb 2012, 08:43
IMO E.

I selected E and it is correct.
However, i am not sure why B is wrong.Can someone please elaborate why B is wrong??

Thanks!!
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Re: Five hundred million different species of living creatures [#permalink]

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New post 27 Feb 2012, 20:19
I got stuck between B and E then chose E.

B just didn't convey the meaning the same way E does.

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Re: Five hundred million different species of living creatures [#permalink]

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New post 27 Feb 2012, 22:46
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Choice E is correct one because in choice D "them" is ambiguous.

In choice B, percentage of plural noun + singular verb (S - V agreement)
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Re: Five hundred million different species of living creatures [#permalink]

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New post 23 Aug 2013, 01:10
enigma123 wrote:
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

Any idea what will be the correct answer guys? I am confused between D and E.



I ruled out A,C and D and was considering B and E and finally chose E.

But why B is incorrect??

Nearly 99 percent of five hundred million different species ------> %age of 500 Million Species is indicating "a group" so in case we had an answer choice with verb "has vanished" would that be correct ??

It does not sound so....

Experts please elaborate a reasoning for Option B
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Re: Five hundred million different species of living creatures [#permalink]

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My 2 cents: B vs E.
In B "creatures that appeared" past tense is not correct, because 500mill species as a group even shares species of present tense also. Therefore, limiting their appearance in the past overall is not good. In option E use of present perfect eliminates that error. Further, this question is not explained properly on any reliable forum by any expert. above mentioned difference is the only thing I managed to figure out.

B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
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Re: Five hundred million different species of living creatures [#permalink]

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New post 22 Jul 2014, 23:51
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A. them - ambiguously refers to living creatures, living creatures that have appeared of the Earth etc.
B. "appeared", "have vanished" - states that the creatures existed. To make it parallel the second clause should also be in past tense.
C. "vanished are", "appeared" - not a parallel construction
D. them - ambiguously refers to living creatures, living creatures that have appeared of the Earth etc.
E. correct answer.


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Re: Five hundred million different species of living creatures [#permalink]

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Re: Five hundred million different species of living creatures [#permalink]

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New post 06 Jun 2016, 11:28
People argue that the main flaw in "B" is its Past tense. "Appeared"

But I highly think that it should be "appeared" and not present perfect " have appeared". The reason is that the sentence already gave out a number - "500 million different species". The "500 million different species" is past, and 99% of those species have vanished. If new species are given birth by mother earth, it would exceed the 500 million counts, perhaps reaching 600 million in the future, and It doesn't make any sense to conclude that 99% of those future species will vanish. So the sentence must mean that the 500 million species existed on earth sometime in the past and vanished/extinct.
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Re: Five hundred million different species of living creatures [#permalink]

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New post 06 Jun 2016, 12:15
enigma123 wrote:
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.


Any idea what will be the correct answer guys? I am confused between D and E.


IMO:

In Answer Choice D,While intended meaning of them is referring to five hundred million different species ,logically it could refer to living creatures too.So Choice D is Ambiguous

But answer Choice E successfully eliminated the concern raised in Answer Choice D and also made the subject specific(Of the five hundred million different species)

So, Correct Answer E
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Re: Five hundred million different species of living creatures [#permalink]

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New post 03 Aug 2016, 04:38
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished

Why do we want present perfect in this sentence "Five hundred million different species of living creatures have appeared on Earth" and not past tense. Appearance of those 500 million species we are talking about - is one time event in the past. It's like saying "I was born". Expert pl clarify.
Re: Five hundred million different species of living creatures   [#permalink] 03 Aug 2016, 04:38
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