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# Discussion of greenhouse effects has usually focused on whether the

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Intern
Joined: 18 May 2019
Posts: 3
Re: Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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28 Sep 2019, 11:05
Hi GMATNinja daagh,

Sorry the question may sound stupid but Isn't "and those that would have the largest impact on people," acting more as a modifier rather then putting it parallel with "the most obvious effects"

egmat wrote:
Hi All,

Discussion of greenhouse effects has usually focused on whether the Earth would warm and by how much, but climatologists have indicated all along that the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess.

Error Analysis:

1. All the subject verb pairs are accounted for: “the most obvious effects” and “those” – “would be”, “that’ (refers to obvious effects) – “would have”.
2. The verb tenses used are correct. Since the sentence talks about future possibility, use of “would” is correct.
3. Pronoun “those” correct refers to “most obvious effects”.
4. Relative pronoun “that” correctly modifies “those” that refers to “the most obvious effects”.
5. “the most obvious effects” is parallel to “those” while “temperature”, “precipitation”, and “storminess” are parallel.
6. There are no idiom error and meaning error in this sentence.
7. This sentence is correct as is.

POE:

Choice A: the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess: Correct for the reasons stated above.

Choice B: the effects that are the most obvious ones, extremes of temperature, precipitation, and storminess, would be those impacting the most on people: Incorrect.
1. “the effects that are the most obvious ones” is way too wordy when we can say “the most obvious effects”.
2. The parallel list has been violated. The entities in the list are now “effects”, “extreme of temperature”, “precipitation”, and “storminess”.
3. Reference of “those” is ambiguous.
4. “impacting the most on people” is absolutely ungrammatical. The correct expression is either “have impact on people” or “impacting people”.

Choice C: those effects to have the largest impact on people, extremes of temperature, precipitation, and storminess, are what are the most obvious effects: Incorrect.
1. Repeats the same parallelism error as in Choice B.
2. “what are “ is not needed.
3. This choice distorts the intended meaning. It says that the effects that would have the largest impact are the most obvious ones.

Choice D: extremes of temperature, precipitation, and storminess, the most obvious effects, that they would have the largest impact on people: Incorrect. There is no verb for “extremes of temperature, precipitation, and storminess”. This leads to a fragment.

Choice E: extremes of temperature, precipitation, and storminess, which are the most obvious effects, are those to impact the most on people: Incorrect.
1. Use of “which” is incorrect.
2. “to impact the most on people” is ungrammatical.

Hope this helps.
Thanks.
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Re: Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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01 Oct 2019, 21:46
ankur55 wrote:
Discussion of greenhouse effects has usually focused on whether the Earth would warm and by how much, but climatologists have indicated all along that the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess.

(A) the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess

(B) the effects that are the most obvious ones, extremes of temperature, precipitation, and storminess, would be those impacting the most on people

(C) those effects to have the largest impact on people, extremes of temperature, precipitation, and storminess, are what are the most obvious effects

(D) extremes of temperature, precipitation, and storminess, the most obvious effects, that they would have the largest impact on people

(E) extremes of temperature, precipitation, and storminess, which are the most obvious effects, are those to impact the most on people

https://www.nytimes.com/1995/05/23/science/more-extremes-found-in-weather-pointing-to-greenhouse-gas-effect.html

Discussion of the greenhouse effect has usually focused on the question of whether the earth will warm and by how much; scientists believe a doubling of greenhouse gas concentrations would raise the average global temperature by 3 to 8 degrees Fahrenheit. But climatologists have said all along that the most obvious effects, and those that will have the largest impact on people, would be extremes of temperature, precipitation and storminess.

Can't find an obvious error. Let's review the option choices if they give some hint.

B: unnecessary that
C: unnecessarily wordy
D: unnecessary that
E: missing verb

A seems the best choice
Senior Manager
Joined: 28 Jan 2017
Posts: 280
Re: Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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02 May 2020, 00:54
egmat wrote:
Choice B: the effects that are the most obvious ones, extremes of temperature, precipitation, and storminess, would be those impacting the most on people: Incorrect.
1. “the effects that are the most obvious ones” is way too wordy when we can say “the most obvious effects”.
2. The parallel list has been violated. The entities in the list are now “effects”, “extreme of temperature”, “precipitation”, and “storminess”.
3. Reference of “those” is ambiguous.
4. “impacting the most on people” is absolutely ungrammatical. The correct expression is either “have impact on people” or “impacting people”.

Hi egmat,

I have some doubts on the highlighted part above.
Why is “impacting the most on people” ungrammatical?
Can you cite official explanation/question indicating that the above usage is ungrammatical?

The highlighted part contradicts what 2 prominent dictionaries say
According to https://dictionary.cambridge.org/dictio ... ish/impact
Quote:
Falling export rates have impacted (on) the country's economy quite considerably.

Also, according to https://www.merriam-webster.com/dictionary/impact
Quote:
intransitive verb
1: to have an impact —often used with on

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Joined: 28 Jan 2017
Posts: 280
Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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02 May 2020, 05:23
Dear Bunuel,

Tag in this question is misleading.
It sure is NOT from OG 18-20.

Moreover, Ron was skeptical whether this is from GMAT Prep as well (https://www.beatthegmat.com/post403523.html)

Maybe this isn't official question.

Quote:

before commenting on the question, i'd like to see proof that it really is from an official source. i have my doubts -- i can see above that the sentence has been taken from the new york times, but it has several elements that don't make much sense outside the larger context of the article.

therefore, i'd like to see a screenshot of the problem from the actual software -- or a citation of whatever other source it may have come from -- before commenting on it. thanks.

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Math Expert
Joined: 02 Sep 2009
Posts: 64216
Re: Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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02 May 2020, 06:05
varotkorn wrote:
Dear Bunuel,

Tag in this question is misleading.
It sure is NOT from OG 18-20.

Moreover, Ron was skeptical whether this is from GMAT Prep as well (https://www.beatthegmat.com/post403523.html)

Maybe this isn't official question.

Quote:

before commenting on the question, i'd like to see proof that it really is from an official source. i have my doubts -- i can see above that the sentence has been taken from the new york times, but it has several elements that don't make much sense outside the larger context of the article.

therefore, i'd like to see a screenshot of the problem from the actual software -- or a citation of whatever other source it may have come from -- before commenting on it. thanks.

_________________
Removed the tags. Thank you.
_________________
Intern
Joined: 03 Dec 2018
Posts: 27
Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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02 May 2020, 22:49
786. Discussion of greenhouse effects has usually focused on whether the Earth would warm and by how much, but climatologists have indicated all along that the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess.
Meaning:
Discussion = subject
of greenhouse effects
has usually focused on= verb for “discussion”
whether the Earth would warm and by how much, = question the level to which earth will become warm. Big question.
, but climatologists have indicated all along = SV pair exist (climatologists - have indicated) So something has been suggested by climatologists, and the part start with “but” so something different from first half.
that the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess.
that the most obvious effects = so climatologists are talking about these effects. “that” is connector. “Effects” is subject of that clause, so we will need verb ahead.
and those that would have the largest impact on people = “that” is referring to “those” so plural verb “have” is correct. “Those” is referring “effects”
, would be extremes of temperature, precipitation, and storminess.
“would be” is verb for “effects”
Finally, this sentence doesn’t seem to have any error. Will look for answer choice, if we find any issue in those options.
Error:
(A) the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess

(B) the effects that are the most obvious ones, extremes of temperature, precipitation, and storminess, would be those impacting the most on people
Distort the meaning , list error as well.
(C) those effects to have the largest impact on people, extremes of temperature, precipitation, and storminess, are what are the most obvious effects
Distort the meaning, same errors as in “B”

(D) extremes of temperature, precipitation, and storminess, the most obvious effects, that they would have the largest impact on people
Distort the meaning. No verb for the list created
(E) extremes of temperature, precipitation, and storminess, which are the most obvious effects, are those to impact the most on people
Distort the meaning, “to impact the most on people” is illogical usage.
Intern
Joined: 29 Dec 2019
Posts: 5
Re: Discussion of greenhouse effects has usually focused on whether the  [#permalink]

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13 May 2020, 18:46
GMATNinja wrote:
SomwyaaSukriti wrote:
Gmat club verbal expert (GMATNinja) can you please explain the parallelism in question option A.

The main clause here is "Climatologists have indicated all along that the most obvious effects would be extremes of temperature, precipitation, and storminess." The three elements in red are the aforementioned "obvious effects." Note that it's perfectly acceptable for one of the elements to be a noun phrase - "extremes of temperature" - and two of the elements to be simple nouns - "precipitation" and "storminess." The important consideration is that all the elements in the list perform the same function, and here they do.

I hope that helps!

How is E wrong?? people are saying use of which is wrong. but which is representing all three extremeties.
Re: Discussion of greenhouse effects has usually focused on whether the   [#permalink] 13 May 2020, 18:46

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