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QOTD: Certain pesticides can become ineffective if

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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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17 Dec 2017, 04:50
Hello mikemcgarry abhimahna

I have a doubt in this one.
The reason I eliminated D is :

The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason, if used repeatedly in the same place, certain pesticides can become ineffective.

Using Underlined as a dep clause and fitting it in the start of the sentence. I know pretty cheap trick.

For example if used repeatedly in the same place, certain pesticides can become ineffective ,The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason.

So here it doesn't even make sense and I crossed it.

Is it worth going with as a strategy?

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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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20 Dec 2017, 10:40
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mikemcgarry wrote:

My friend, I'm sorry to say that you misapplied this cheap trick...

The rule-based approached to GMAT SC is a conveyor belt to the middle of nowhere.

Two awesome lines, mikemcgarry! Love it.
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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16 Jan 2018, 20:36
souvik101990 wrote:

Verbal Question of The Day: Day 57: Sentence Correction

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Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.

(A) Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

(B) If used repeatedly in the same place, one reason that certain pesticides can become ineffective is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

(C) If used repeatedly in the same place, one reason certain pesticides can become ineffective is suggested by the finding that much larger populations of pesticide-degrading microbes are found in soils with a relatively long history of pesticide use than those that are free of such chemicals

(D) The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason, if used repeatedly in the same place, certain pesticides can become ineffective

(E) The finding of much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in those that are free of such chemicals suggests one reason certain pesticides can become ineffective if used repeatedly in the same place

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AjiteshArun ,GMATNinja ,mikemcgarry , egmat ,sayantanc2k , other experts -
In OA-A , can you please enlighten on the usage of the underlined part as below that can be reworded as - If used repeatedly in the same place, Certain pesticides can become ineffective.
Since the If part of the sentence is in simple past (used), shouldn't the then part of the sentence be in simple past or use would verb ?

Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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16 Jan 2018, 20:48
Skywalker18 wrote:
AjiteshArun ,GMATNinja ,mikemcgarry , egmat ,sayantanc2k , other experts -
In OA-A , can you please enlighten on the usage of the underlined part as below that can be reworded as - If used repeatedly in the same place, Certain pesticides can become ineffective.
Since the If part of the sentence is in simple past (used), shouldn't the then part of the sentence be in simple past or use would verb ?
The used you see there isn't actually a verb. Think of it as a shorter way to say are used (present tense, passive).

If they are used regularly, certain pesticides can become ineffective.

One way to see that used is (in this case) not a verb is to do the same thing with an irregular verb.

We clearly can't say
If ate regularly...

If eaten regularly...
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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17 Jan 2018, 07:32
Skywalker18 wrote:
souvik101990 wrote:

Verbal Question of The Day: Day 57: Sentence Correction

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Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.

(A) Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

(B) If used repeatedly in the same place, one reason that certain pesticides can become ineffective is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

(C) If used repeatedly in the same place, one reason certain pesticides can become ineffective is suggested by the finding that much larger populations of pesticide-degrading microbes are found in soils with a relatively long history of pesticide use than those that are free of such chemicals

(D) The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason, if used repeatedly in the same place, certain pesticides can become ineffective

(E) The finding of much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in those that are free of such chemicals suggests one reason certain pesticides can become ineffective if used repeatedly in the same place

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.

AjiteshArun ,GMATNinja ,mikemcgarry , egmat ,sayantanc2k , other experts -
In OA-A , can you please enlighten on the usage of the underlined part as below that can be reworded as - If used repeatedly in the same place, Certain pesticides can become ineffective.
Since the If part of the sentence is in simple past (used), shouldn't the then part of the sentence be in simple past or use would verb ?

Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

As mentioned above, "used" is NOT a verb - it is in fact a past participle. The part "If used repeatedly in the same place" is a past participle phrase modifier referring to the noun phrase "certain pesticides".
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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17 Jan 2018, 17:22
1
Skywalker18 wrote:
AjiteshArun ,GMATNinja ,mikemcgarry , egmat ,sayantanc2k , other experts -
In OA-A , can you please enlighten on the usage of the underlined part as below that can be reworded as - If used repeatedly in the same place, Certain pesticides can become ineffective.
Since the If part of the sentence is in simple past (used), shouldn't the then part of the sentence be in simple past or use would verb ?

Certain pesticides can become ineffective if used repeatedly in the same place; one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals

Dear Skywalker18

I'm happy to contribute to this discussion.

I see that my intelligent colleagues AjiteshArun and sayantanc2k have already responded. With all due respect to those gentlemen, I would give a slightly different reply.

Because "if" is a subordinate conjunction, this word always begins a full clause that requires a full verb. I believe the GMAT would say that "if used repeatedly" is correct only because it is understood that a simple [pronoun] + [auxiliary verb] pair has been omitted.

If [they are] used repeatedly in the same place, certain pesticides can become ineffective.

Here, we see that the verb is NOT a past tense verb at all. Instead, it's a present-tense passive verb.

Does all this make sense?
Mike
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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03 Sep 2018, 23:07
Quote:
(D) The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason, if used repeatedly in the same place, certain pesticides can become ineffective.

Guys I have eliminated D for a reason:

There are two independent clauses connected by a comma.

Please correct me if I am wrong
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Re: QOTD: Certain pesticides can become ineffective if  [#permalink]

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03 Sep 2018, 23:18
SonGoku wrote:
Guys I have eliminated D for a reason:

There are two independent clauses connected by a comma.

Please correct me if I am wrong
You should read option D like this:

The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason (that), if used repeatedly in the same place, certain pesticides can become ineffective.

The that after reason is understood (it doesn't have to be explicitly included in the sentence). So we are effectively left with only one independent clause. If you cut most of the extra stuff out, you are left with this:

The finding is suggestive of one reason that certain pesticides can become ineffective.
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Re: QOTD: Certain pesticides can become ineffective if &nbs [#permalink] 03 Sep 2018, 23:18

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