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# Industrialization and modern methods of insect control have improved t

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Industrialization and modern methods of insect control have improved t [#permalink]

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12 Oct 2008, 21:17
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Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

(A) while at the same time they have introduced some 100,000 dangerous chemical pollutants, having

(B) while at the same time introducing some 100,000 dangerous chemical pollutants that have

(C) while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have

(D) but introducing some 100,000 dangerous chemical pollutants at the same time that have

(E) but at the same time introducing some 100,000 dangerous chemical pollutants, having
[Reveal] Spoiler: OA

Last edited by hazelnut on 31 Aug 2017, 07:39, edited 1 time in total.
Reformatted the question.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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12 Oct 2008, 21:40
paeagain wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

go with B between A and B.

They is ambigious in A.
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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12 Oct 2008, 22:29
GMAT TIGER wrote:
paeagain wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

go with B between A and B.

They is ambigious in A.

Isn't they referring to the compound subject "Industrialization and modern methods of insect control" ??

Plus "have improved" needs "have introduced" to parallel ?

Why cant it be C ? "which" is referring to chemical pollutants because "at the same time" seems to be modifying chemical pollutants..

I am not able to decide between B and C

What is the OA ?
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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12 Oct 2008, 22:48
OA is B

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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13 Oct 2008, 00:45
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paeagain wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

While at the same time seemed redundant !! hence opted E
But alass OA is B !!

i dont know how to deal with SC
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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14 Oct 2008, 07:32
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amitdgr wrote:
GMAT TIGER wrote:
paeagain wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

go with B between A and B.

They is ambigious in A.

Isn't they referring to the compound subject "Industrialization and modern methods of insect control" ??

Plus "have improved" needs "have introduced" to parallel ?

Why cant it be C ? "which" is referring to chemical pollutants because "at the same time" seems to be modifying chemical pollutants..

I am not able to decide between B and C

What is the OA ?

This is correct: that they refers to "Industrialization and modern methods of insect control".

"Which" in C is wrongly used.
"Having" in A is wrongly used.
Nothing much to say about D and E.

I think "they" is redundant but understood..

So B.
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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14 Oct 2008, 08:09
B is correct. I don't know about all of you but I don't go by the rules of grammar at all. In fact, I don't even know more than half the technical things that you all discuss. I am sure when I was in school I read and learnt those things but they have been long forgotten. I simply go by the way I WOULD speak a particular sentence. English is a strange language in a certain sense. What may seem correct in one context may not seem correct in another. The only way to tackle these questions, I think, is to imagine yourself speaking the sentence with your eyes closed and feel if it sounds alright. Now, this may not work for everybody but it does for me.
This particular question, it is my belief, is a perfect example that there are no rules in English (if you know what I mean)!

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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14 Oct 2008, 08:17
KASSALMD wrote:
B is correct. I don't know about all of you but I don't go by the rules of grammar at all. In fact, I don't even know more than half the technical things that you all discuss. I am sure when I was in school I read and learnt those things but they have been long forgotten. I simply go by the way I WOULD speak a particular sentence. English is a strange language in a certain sense. What may seem correct in one context may not seem correct in another. The only way to tackle these questions, I think, is to imagine yourself speaking the sentence with your eyes closed and feel if it sounds alright. Now, this may not work for everybody but it does for me.
This particular question, it is my belief, is a perfect example that there are no rules in English (if you know what I mean)!

You are a LOT like me in this sense
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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12 Aug 2009, 17:03
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Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.

(A) while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
(B) while at the same time introducing some 100,000 dangerous chemical pollutants that have
(C) while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
(D) but introducing some 100,000 dangerous chemical pollutants at the same time that have
(E) but at the same time introducing some 100,000 dangerous chemical pollutants, having

Last edited by hazelnut on 31 Aug 2017, 07:37, edited 1 time in total.
Reformatted the question.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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12 Aug 2009, 21:37
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ugimba wrote:
Industrialization and modern methods of insect control have improved the standard of living around the globe while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually unregulated since they were developed more than 50 years ago.
A. while at the same time they have introduced some 100,000 dangerous chemical pollutants, having
B. while at the same time introducing some 100,000 dangerous chemical pollutants that have
C. while they have introduced some 100,000 dangerous chemical pollutants at the same time, which have
D. but introducing some 100,000 dangerous chemical pollutants at the same time that have
E. but at the same time introducing some 100,000 dangerous chemical pollutants, having

To me a structure of the sentence has the following logic:

Industrialization and modern methods...have improved the standard of living...while introducing dangerous chemical pollutants...[polutants] have gone unregulated since they (pollutants) were developed...

using 2/3 rule:
While vs. but - While wins. so we can eliminate D&E
In C "which" modifies time
A says that "Industrialization and methods of insects contorol..having gone (sounding awkward at least) unregulated." I think the meaning is distorted.

So B wins.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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11 Sep 2009, 08:29
Going with B on this one.

A & E. Having is very akward.
C. There's no clear referent to they.
D. But introducing - very bad.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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13 Jun 2010, 08:20
while at the same time is not wordy??
Thanks,
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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14 Jun 2010, 11:57
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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19 Jun 2010, 03:29
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Nobody is going to answer this??
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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30 Jun 2010, 08:38
Its close between B & D.
I will go with B as 'that' clause in the end modifies pollutants that have gone unregulated.
'that' clause modifies time in D instead of pollutants located in the end of sentence.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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30 Jun 2010, 10:25
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noboru wrote:
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Nobody is going to answer this??

not redudant at all...

while (signals contrast) at the same time (signals 'in conjunction with') ... how's that redundant?
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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30 Jun 2010, 10:29
tomirisk wrote:

using 2/3 rule:
While vs. but - While wins. so we can eliminate D&E

I wouldn't be on the 2/3 rule... i find it unreliable. don't eliminate "but" just because it showed up only 2 times. eliminate the answer choices based on other issues in the sentences.
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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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26 Nov 2010, 11:32
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Here's my take on why A is not suitable:
Consider this part: "..while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually X.."
the problem with the modifier is that it can be taken to refer 'they have introduced'. If you read the stimulus carefully this ambiguity will become evident.
Remember, verb modifiers do not need to touch the verb that they modify.
In B, the modifier clearly refers to the noun chemical pollutant, which it is actually supposed to modify..

Hope this helps.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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26 Nov 2010, 12:51
OK, I agree with that, but...what does your explanation has to do with "while at the same time" being or not redundant?

Thanks!

naish wrote:
noboru wrote:
noboru wrote:
while at the same time is not wordy??
Thanks,

I mean redundant. Could anybody please clarify?

Here's my take on why A is not suitable:
Consider this part: "..while at the same time they have introduced some 100,000 dangerous chemical pollutants, having gone virtually X.."
the problem with the modifier is that it can be taken to refer 'they have introduced'. If you read the stimulus carefully this ambiguity will become evident.
Remember, verb modifiers do not need to touch the verb that they modify.
In B, the modifier clearly refers to the noun chemical pollutant, which it is actually supposed to modify..

Hope this helps.

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Re: Industrialization and modern methods of insect control have improved t [#permalink]

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02 Dec 2010, 22:52
Between B,C and D that has a clear referrant in B.Hence, B prevails.
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Re: Industrialization and modern methods of insect control have improved t   [#permalink] 02 Dec 2010, 22:52

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