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# According to scientists who monitored its path, an expanding cloud

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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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25 Dec 2013, 00:55
very tough.

as usually, the explanation is easy but the doing is hard. we need to realize which noun among many nouns in the sentence is subject of "brightening and knocking". scaning answer choices, we realize the subject in C is possibley most logic for the "brightening and knocking" .

in the test room, how do we realize this logic/meaning?

any one has any specific skill for this type of question? pls share
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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06 Oct 2014, 13:37
ChrisLele wrote:
First off, we need to identify whether the scientists are tracking the expanding cloud or the storm. The original sentence clearly indicates that the magnetic field is in the Earth. Therefore, it is the 'expanding cloud...' so we can eliminate (D) and (E). Next we can eliminate (A) because the 'which' incorrectly modifies 'Earth.' The 'it' in (B) is ambiguous. Therefore the answer is (C).

What is the subject in this question?
choice C - Whats brightening referring to? whats the subject here?
Choice B - it is ambiguous but its paralleled with brightened and knocked even though it is passive voice.

I just can't eliminate choice b because of the style issue.

can you please explain C ?

Thank you !
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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07 Jan 2015, 16:55
Eliminate D and E - expanding cloud should be a subject here, not a large storm.
In choice A wich modifies the Earth and says that the Earth brightened the Northern lights - WRONG - The Storm did it.
Eliminate B: two sentences here are connected with AND meaning that an expanding cloud 1)triggered the sotrm and 2) An expanding cloud brightened North...
We are left with choice C
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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17 Jul 2015, 01:28
betterscore wrote:
According to scientists who monitored its path,
an expanding cloud of energized particles ejected from
the Sun recently triggered a large storm in the
magnetic field that surrounds Earth. which brightened
the Northern Lights and also possibly knocking
out a
communications satellite.

(A) an expanding cloud of energized particles
ejected from the Sun recently triggered a large
storm in the magnetic field that surrounds
Earth, which brightened the Northern Lights and
also possibly knocking

(B) an expanding cloud of energized particles
ejected from the Sun was what recently
triggered a large storm in the magnetic field
that surrounds Earth, and it brightened the
Northern Lights and also possibly knocked

(C) an expanding cloud of energized parti cles
ejected from the Sun recently triggered a large
storm in the magnetic field that surrounds
Earth, brightening the Northern Lights and
possibly knocking

(D) a large storm in the magnetic field that
surrounds Earth, recently triggered by an
expanding cloud of energized particles,
brightened the Northern Lights and it possibly
knocked

(E) a large storm in the magnetic field surrounding
Earth was recently triggered by an expanding
cloud of energized particles, brightening the
Northern Lights and it possibly knocked

this is very hard for non native.
read choic A. "and knocking" is wrong because there are no "doing" in the first part which parralel to "knocking". easy
read choice B, "it" refers to "clound" . this point make sentence hard. we can not say thay "it" is not logic when we have not read choice C. we can only say, here, that , "it" is not perfered because we can cut off "it". it is clear that "clound was and brighten" is better " clound was and it brighten". we can not emiminate choice B at this moment.

read choice C. we realize that "brightening " should be done by "magnatic field" not by "cloud" as in choice C. only now we see that meaning in C is better than meaning in B.
this is very hard because we can not see that meaning in B is not logic when we read B first time.

a question is hard is the one which contains a choice you can not eliminate when you read it first time. in hard question, you have to compare the meanings of two choices to eliminate a meaning/ a choice.

very tough
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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29 Jul 2015, 07:09
When facing tough question such as this, the easier method will be to fall back on small grammar snippets to eliminate as many wrong choices as possible first; In this case, we can eliminate A and E because, we can see the mismatch of parallelism easily; second we can eliminate B because it uses ‘and also’, a redundant expression. This leaves us with C and D; At a higher level of parallelism, we should avoid the use of the subject or its pronoun in the second arm, if it happens to be same as the subject of first arm; using “it" is said to be redundant in such cases. If the pronoun’s reference is in doubt, then that choice is fit to be dropped. We can eliminate D, and end up with C as the correct choice. This may not be a panacea for situations, but at least a handy tool
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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03 Feb 2016, 03:49
Hi,

Just one question on this. "ejected" here is modifier and not verb right?

Wanted to confirm that because just reading the phrase "cloud ejected from the sun" in isolation makes it a verb.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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03 Feb 2016, 22:54
Yes for sure, 'ejected' is and ed modifier modifying the particles. If it was a verb, then there will be no need for another verb ' triggered'.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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14 Feb 2016, 08:20
(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

[two problems: 1/ "brightened" and "knocking" should be parallel. 2/ the intended meaning of the writer is not to modify the storm; instead the writer intends to express a subsequent result.]

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

[two problems: 1/ the construction "...was what triggered..." is unnecessarily wordy; we dont have to emphasize what triggers the storm according to the context. 2/ "it" in the second sentence literally refers to "an expanding cloud", distorting the intended meaning. the result of "knocking" and "brightening" comes from the whole progress mentioned in the first sentence.]

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

[correct]

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

[one problem: "it possibly" is unnecessary. we prefer conciseness in business writing.]

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked

[this one is complicated. 1/ the use of passive voice is unnecessary because we already knew who performed the action. 2/ logically "knocked" and "brightening" should be parallel. 3/ if "it possibly knocked..." is to be parallel to "a large storm...", there should be a comma after "Lights"]
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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04 May 2016, 10:43
betterscore wrote:
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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24 Jun 2016, 01:43
ChrisLele wrote:
First off, we need to identify whether the scientists are tracking the expanding cloud or the storm. The original sentence clearly indicates that the magnetic field is in the Earth. Therefore, it is the 'expanding cloud...' so we can eliminate (D) and (E). Next we can eliminate (A) because the 'which' incorrectly modifies 'Earth.' The 'it' in (B) is ambiguous. Therefore the answer is (C).

ChrisLele,

They track the storm in the magnetic field, not the magnetic field. And even if what they track is in the Earth, it is logical to say that scientists track it. Your criteria to discard options D and E is therefore defective.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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24 Jun 2016, 02:47
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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25 Jun 2016, 09:44
The subject is correct, so the issues are with verb conjugation. Only answer choice C does this correctly.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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15 Oct 2016, 09:31
SPLIT1) PARALLELISM: EITHER "ING" "ING" OR "ED" "ED" WILL BE RIGHT IN THE WORDS "BRIGHT" AND "KNOCK" SO THAT MEANS BRIGHTENING AND KNOCKING AND BRIGHTED AND KNOCKED. A, D AND E ARE OUT.

SPLIT2) DIRECT VS. INDIRECT LANGUAGE. B USED INDIRECT LANGUAGE, THE GMAT LIKS DIRECT LANGUAGE = "Sun was what recently triggered a large storm in the magnetic field that surrounds Earth.." B IS OUT.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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03 Apr 2017, 05:04
carcass wrote:
Tough call

whenever you see such complex questions AND a modifier is at the beginning of the same, the first thing to think is twofold: attack even aggressive the question and try to figure out the subject of the sentence, what is the critical point of the same. Moreover, is important to figure out the first words of the underlined part at the beginning or at the end to see a split (even the most difficult question have a split, even a single word, no matter what)

Now, we start with According to scientists who monitored its path: to make things simple i see a path, a path of who or whom VS a path of that or which; here the subject is a cloud VS a storm, bot are possible in this scenario in terms of path

D and E ant the end have and it but here i do not see something in terms of antecedent of it: both particles and Lights do not agree, so out.

A B C

an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds earth, which brightened the Northern Lights and also possibly knocking

here which is incorrect because it refers to earth but this is impossible that brightened the Northern Lights: has no logical sense. The tenses are not parallel too

an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds earth, and it brightened the Northern Lights and also possibly knocked

Both bold parts are clearly wrong

we have now C

an expanding cloud (subject) of energized particles ejected from the Sun recently triggered (verb) a large storm in the magnetic field that surrounds earth, brightening the Northern Lights and possibly knocking (the right subordinated clause)

This is more or less the process to tackle the most difficult SC. No matter what. The patterns followed by the exam are not infinite.

Regards. +1 nice question, really.

@Carcass in D can't it refer to storm..subject if clause to subject

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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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03 Apr 2017, 21:25
betterscore wrote:
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked

this question is hard and we want to find out how to do.
this question is still ask us to choose between two meanings as other SC problems . we have to find which meaning is more logic. we alway keep in mind this point of test.

and when read the sentence, alway find the grammatical role of each phrase, and check whether this is logic or not. if we see a grammatical role is not logic, we can eliminate it immediately. but some times, as is the case in this problem, we can not know whether a grammatical role of a phrase is logic until we see two choices/two meanings.

I will illustrate the two situations here, the first is we can realize that a grammatical role is not logic, the second is we have to compare two meanings to know which grammatical role is logic.

we realize that "which" must refer to "earth" because which can not jump over a clause to modify "magnetic field". this is not logic. this is the case in which we can decide immediately an grammatical role is not logic

now we will face a case in which we can not decide whether a grammatical role is logic or not. instead, we have to read two meanings to decide which meaning is logic.

"it" is parallel with "clound" so, the meaning is "clound brighten" . is this meaning logic? we can not know now. we have to read one choice more

grammatically, "that" or " storm" make "brightening and knocking" . is this logic
now we compare with meaning in choice B. clound brighten or storm bighten. only now we see that "storm brighten" is more logic. bingo. C is better

the main job is finished now. read choice D and E to confirm what we have just done.

what I want to say here is we are ready to face two cases. in the first case, we can dicide immediately that a grammatical role is not logic. in the second case, we have to compare two grammatical roles, two meanings,
before to know which meaning is more logic. both cases can be illustrate in the above problem

this is hard question.
give me a kudos if you like
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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03 Apr 2017, 22:09
deependra1234 wrote:
carcass in D can't it refer to storm..subject if clause to subject
Yes, the it does refer to a large storm in the magnetic field.
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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21 Jun 2017, 07:43
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking - what is "which" referring to, possibly earth.. which is illogical
(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked - what is "it" referring to
(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking - CORRECT, "brightening" parallel to "knocking" + "brightening" and "knocking" = verb+ing that modifies the full clause preceding it
(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked - again what "it" referring to is unclear
(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked - "brightening" and "knocked" not parallel
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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18 Sep 2017, 13:23
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked
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Re: According to scientists who monitored its path, an expanding cloud  [#permalink]

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30 Sep 2017, 01:34
betterscore wrote:
According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth. which brightened the Northern Lights and also possibly knocking out a communications satellite.

(A) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking

(B) an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, and it brightened the Northern Lights and also possibly knocked

(C) an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brightening the Northern Lights and possibly knocking

(D) a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked

(E) a large storm in the magnetic field surrounding Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked

I feel in option C the word " brightening" is modifying earth which is wrong. Can someone please point out where i am going wrong, and also what is the function of brightening in that sentence.
Re: According to scientists who monitored its path, an expanding cloud &nbs [#permalink] 30 Sep 2017, 01:34

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