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The ability of scientists to provide models of the

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The ability of scientists to provide models of the [#permalink] New post 25 Jul 2009, 12:48
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39% (01:48) correct 61% (01:03) wrong based on 844 sessions
The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

(A) The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.
(B) The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions.
(C) Scientists have become able to provide ever more accurate models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions.
(D) Scientists have become ever more accurate in their ability for providing models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions.
(E) Scientists' ability to provide models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate.

Please accompany your answers with your reasoning.

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Re: The ability of scientists [#permalink] New post 28 Jul 2009, 10:45
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A – The ability of …….have become -out for wrong subject –verb agreement
E- Scientists’ ability ………have become – wrong subject verb agreement.
In D, “like” should be replaced by “such as” and ever accurate should be used for models
In B – it states that The ability of scientists has become ever more accurate – wrong it is models, which are more accurate instead of ability
So C wins.
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Re: The ability of scientists [#permalink] New post 28 Jul 2009, 19:22
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Bigoyal if you are debating between B and C....then here is why C is better.

B. The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions.

B conveys somewhat nonsensical meaning...."The ability of scientists has become ever more accurate "....Ability can never become more accurate....it is only the scientists who can become more capable or able....which is exactly what C says.
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Re: The ability of scientists to provide models of the [#permalink] New post 16 Jul 2012, 05:57
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Lets delve into the answer options. The important aspect of attacking a sentence correction problem is to eliminate the fluff. Additionally, if you are not sure about the use of idioms, then try to identify other errors in the sentence. Most SC question stems will contain multiple errors.

(A) The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

[color=#0000ff](A) The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

Let's us cut out the fluff first.........The ability of scientists<BLAH> <BLAH> <MORE BLAH>........have become more accurate
Ability is singular and Scientists is plural.
The sentence, as it is written, contains a subject-verb agreement error.

Singular subjects should use Singular verbs
Plural Subjects should use Plural Verbs


E.g: It is incorrect to say " We has a car". We is Plural and has is singular. Hence we can eliminate this option without delving into additional details.
Now you may ask, isnt the "have" in the above sentence , referring to scientists". The answer is a resounding "NO".

When trying to identify subjects in a sentence, look at nouns (name, place, thing) , but eliminate all subjects that occur within a prepositional phrase.
"of Scientists" is a prepositional phrase (Why ?because it starts with an "of" and "of" is a preposition) and IS NOT considered when matching subjects and Verb.

E.g : The number of students IS decreasing every year.
The sack of potatoes, IS quite heavy.

GMAT typically tries to obscure the verbs by inserting a lot of, for the lack of a better word, BLAH-BLAH :-) into the sentence
Lets rewrite the second sentence listed above in true GMAT style.

E.g: The sack of potatoes, which we plan to use for cooking many tasty dishes for tomorrow's wedding and for preparing french fries for the groom's parents, IS quite heavy. (phew, All that "BLAH BLAH" stuff to try and obscure the subject -verb agreement error from the GMAT TAKER. )


(B) The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions.

Hmmm.
This answer option gets rid of the Subject Verb agreement problem that we have just seen in Option 1.

Subject : The ability of scientist
Verb :Has

Grammatically, this sentence looks ok. However, lets look at the meaning a lil bit closer
The ability of scientists has become ever more accurate.....blah blah...................
This answer option implies that The ability of scientists has become ever more accurate.....Oh Oh. It is incorrect to say that the
ability of something has become more accurate. The right usage would be "The methods or models created by the Scientists have become more accurate....."


(C) Scientists have become able to provide ever more accurate models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions.
Both the errors that we have identified in Options a) and b) are rectified here.

The use of .......such as in the fragment .......complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions.... is a bit unorthodox. However this is not a deal breaker.


(D) Scientists have become ever more accurate in their ability for providing models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions.

This sentence rectifies the errors that we have seen in option (A), (B), (C).
The subject of this sentence is "Scientists "
The verb is "have"
Just when we think that we see the light at the end of the tunnel, we see the idiom :- for providing
Ok, this is wrong. The correct usage of this idiom is .......to provide.
There are some idioms that use infinitives and some that use "FOR"
Who decides these rules ? Well, these rules just evolve over time. There isnt a hard and fast rule to decide whether to use "to" or "FOR". It just depends...

E.g : I value your ability to bring in new thoughts.
The following uses are incorrect
E.g : I value your ability of bringing new thoughts
E.g : I value your ability for bringing in new thoughts.

An example of an idiom that uses "FROM"
E.g " The law prohibits any student from socializing with the teaching staff.

It would be incorrect to say " The law prohibits any student to socialize with the teaching staff.

This sentence has yet another error. The use of "like" when presenting examples is a NOT ALLOWED
E.g : I prefer games like football and tennis
E.g : I prefer games such as football and tennis.

"Like" is typically used to COMPARE NOUNS.
E.g : Like his father, John plays the piano.
E.g : John Plays the piano, like his father.


(E) Scientists' ability to provide models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate.

Subject verb agreement issue.
Subject : Scientist's ability (Singular)
Verb : have (Plural)


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Last edited by hafizkarim on 16 Jul 2012, 23:12, edited 1 time in total.
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Re: The ability of scientists [#permalink] New post 25 Jul 2009, 13:07
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A --> wrong s-v agreement (The ability of scientists singular) , such as required not like
D --> such as required not like
E --> wrong s-v agreement

C better as more concise compared to B
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Re: The ability of scientists [#permalink] New post 19 Jul 2010, 07:42
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The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

(A) The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate. - 'have' is incorrect for the singular 'ability. We need 'such as' to provide examples not 'like'. 'to provide is idiomatic.

(B) The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions. - 'in providing' is unidiomatic

(C) Scientists have become able to provide ever more accurate models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions. - 'to provide is idiomatic. 'Scientists have become able' is correct. 'such as' is used to prvide examples.

(D) Scientists have become ever more accurate in their ability for providing models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions. - 'in their ability for providing' is awkward. 'like' is incorrect usage here.

(E) Scientists' ability to provide models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate. - 'have' is incorrect for 'ability'.
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Re: The ability of scientists [#permalink] New post 27 Jul 2011, 10:18
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Wow! Good question and glad I got it right! Here is my explanation below:
(A) The ability of scientists to provide models of the atmosphere’s complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate. Subject-verb agreement error: ability and have
(B) The ability of scientists has become ever more accurate in providing models of the atmosphere’s complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions. Sounds confusing and wordy
(C) Scientists have become able to provide ever more accurate models of the atmosphere’s complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions. Correctly conveys the author's intent
(D) Scientists have become ever more accurate in their ability for providing models of the atmosphere’s complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions. "like" is not allowed on GMAT when providing a list of examples
(E) Scientists’ ability to provide models of the atmosphere’s complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate. Subject-verb agreement error ability and have
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Re: The ability of scientists [#permalink] New post 09 Jul 2010, 06:32
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GMAT's favorite trick. like Vs "such as"
The use of like to introduce examples is always incorrect on GMAT.

That leaves B, C and E
E : has SV disagreement
B : fatal change of meaning

C it is.
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Re: The ability of scientists to provide models of the [#permalink] New post 06 Dec 2011, 09:55
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+1 C

We are providing an example, "such as" is required.
C keeps the meaning. The models are acurate, not the ability.
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Re: The ability of scientists [#permalink] New post 25 Jul 2009, 19:32
able to is correct idiom

ability to is correct idiom

C uses correct idiom
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Re: The ability of scientists [#permalink] New post 28 Jul 2009, 11:06
C - Accurate correctly modifies model, not ability
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Re: The ability of scientists [#permalink] New post 29 Jul 2009, 21:55
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Re: The ability of scientists [#permalink] New post 08 Jul 2010, 14:23
I will definitely go with C , but is B grammatically incorrect?
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Re: The ability of scientists [#permalink] New post 18 Jul 2010, 14:39
In A&E the ability becomes accurate instead of the prediction..
just another reason to eliminate them..

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Re: The ability of scientists [#permalink] New post 01 Jun 2011, 11:28
That was a toughie. Took a whole 1:50 to solve. I will go with C. B and D are out as they use incorrect idiom. Correct idiom is 'to provide'. E is out as ability is singular and E uses 'have'. Same reason for A. This leaves us with C.
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Re: The ability of scientists [#permalink] New post 01 Jun 2011, 18:01
C it is. The ability is not more accurate, the model is. Only C gives this.
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Re: The ability of scientists [#permalink] New post 22 Jun 2011, 02:37
C; though "Scientist have become able to " sound odd to be but it is the best among all available
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Re: The ability of scientists [#permalink] New post 22 Jun 2011, 04:27
C is the answer, as it is using proper idiom.
very good question,
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Re: The ability of scientists [#permalink] New post 12 Jul 2011, 07:03
prasforgmat wrote:
C; though "Scientist have become able to " sound odd to be but it is the best among all available



That is what I thought also, which made me think "B", but "B" is modifying ability, so ultimately I went bk with "C"
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Re: The ability of scientists [#permalink] New post 16 Jul 2011, 09:28
Tough one; was in dilemma between B and C. Although I wanted to choose C, couldn't pick as I felt it was moving away a little from the emphasis on ability. But I agree C is the right choice.
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Re: The ability of scientists   [#permalink] 16 Jul 2011, 09:28
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