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New theories propose that catastrophic impacts of asteroids and comets

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New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post Updated on: 16 Nov 2018, 00:21
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New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

(A) splitting apart continents
(B) the splitting apart of continents
(C) split apart continents
(D) continents split apart
(E) continents that were split apart


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Question No.: SC 117
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Originally posted by walker on 18 Jan 2008, 01:09.
Last edited by Bunuel on 16 Nov 2018, 00:21, edited 2 times in total.
Edited the question.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 18 Jan 2008, 02:44
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walker wrote:
532. New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

(A) splitting apart continents - is a participle, therefore not correct for parallelism.
(B) the splitting apart of continents - noun because the article "the" changes the participle "splitting apart" into a noun, therefore it looks good
(C) split apart continents - verb, therefore no
(D) continents split apart - although this option starts with a noun, none of the other items on the list has a verb. therefore, "split" ruins the parallel structure.
(E) continents that were split apart- no where in the other items in the list has any relative pronouns


I would say B because we have a list of nouns, and some nouns have adjectives as well. Adjectives don't interfere with the nouns, so we have to look for an answer choice that would have either a noun or a noun with an adjective.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 14 Sep 2012, 20:21
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119) New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

(A) splitting apart continents
(B) the splitting apart of continents
(C) split apart continents
(D) continents split apart
(E) continents that were split apart

The imp thing in the question is check the construction : Cause -> Effect

New theories propose that catastrophic impacts of asteroids and comets may have caused
reversals in the Earth’s magnetic field,
the onset of ice ages,
splitting apart continents 80 million years ago,
and great volcanic eruptions.

Now these 4 should be parallel - the splitting apart of continents ( complex gerund mostly constructed by the +simple gerund+ of ..)
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 12 Oct 2012, 19:41
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We have a list of noun phrases here -

reversals in the Earth’s
the onset of ice ages
volcanic eruptions

(A) splitting apart continents - this is a verb and conveys that preceding action did the splitting
(B) the splitting apart of continents - "of" makes the difference here..."the splitting" becomes the noun phase
(C) split apart continents - "split" again acts as verb - we need a noun - thats why this stands incorrect in the context
(D) continents split apart - change of meaning
(E) continents that were split apart - incorrect

I hope this helps!
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 12 Oct 2012, 23:01
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Action nouns are parallel to complex gerund phrases.

Only B satisfies the condition.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 18 Oct 2012, 05:53
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To maintain the parallelism of the sentence, the list that the impacts (reversal...., onset, ...splitting.... and ....eruptions) need to be parallel. As it stands in A the list goes noun, noun, verb, noun so we need to correct the verb phrase into a noun phrase.
A – eliminate because splitting is a noun
B – Correct. Splitting in this sense is a gerund and therefore a noun. This is achieved by the placement of ‘the’ and the conjunction ‘of’ which makes continents a modifier of the noun. Think of running, it’s an activity (i.e. a noun) and an action (i.e. a verb)
C – split is a verb in the infinitive, and hence isn’t the noun we’re looking for
D – Not sure how to explain this unless I simplify the sentence. Catastrophic impacts .... caused...SPLIT APART CONINENTS. As is stands, this sentence says that the asteroids created the continents (which are split) rather than creating the action of splitting the continents.
E – Again, this sentence says that the continents were created, rather that the action of splitting.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 26 Mar 2013, 00:55
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Hello,

Let me see if I can work this one through....


New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

OK, from the question it looks like this is a parralelism issue. We have a list of things that 'catastrophic impacts of asteroids and comets' may have done, but right now the current underlined sections seems to be out of kilter with the rest of the list. Look at each of the items in turn:

reversals in the Earth’s magnetic field
the onset of ice ages,
splitting apart continents 80 million years ago
and great volcanic eruptions.

It is clear that the red section, which equates with the underlined is out of sync. It's the only one with an 'ing' i.e. an action occuring. Everything else is different.

Looking at the answer options gives us a clear winner...


(B) the splitting apart of continents. And here it is by adding the 'the' we change the meaning, and it becomes a statement like the others, rather than something happening.
(C) split apart continents This 'split' is in the past tense - unlike anything else
(D) continents split apart Again past tense
(E) continents that were split apart Once more an action occuring in the past

Hope that helps...
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 22 Dec 2013, 03:09
tarek99 wrote:
walker wrote:
532. New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

(A) splitting apart continents - is a participle, therefore not correct for parallelism.
(B) the splitting apart of continents - noun because the article "the" changes the participle "splitting apart" into a noun, therefore it looks good
(C) split apart continents - verb, therefore no
(D) continents split apart - although this option starts with a noun, none of the other items on the list has a verb. therefore, "split" ruins the parallel structure.
(E) continents that were split apart- no where in the other items in the list has any relative pronouns


I would say B because we have a list of nouns, and some nouns have adjectives as well. Adjectives don't interfere with the nouns, so we have to look for an answer choice that would have either a noun or a noun with an adjective.


Why "split" in B is not past participle and therefore parallel to "volcanic eruptions" ?
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 22 Dec 2013, 05:08
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Skag55 wrote:
tarek99 wrote:
walker wrote:
532. New theories propose that catastrophic impacts of asteroids and comets may have caused reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

(A) splitting apart continents - is a participle, therefore not correct for parallelism.
(B) the splitting apart of continents - noun because the article "the" changes the participle "splitting apart" into a noun, therefore it looks good
(C) split apart continents - verb, therefore no
(D) continents split apart - although this option starts with a noun, none of the other items on the list has a verb. therefore, "split" ruins the parallel structure.
(E) continents that were split apart- no where in the other items in the list has any relative pronouns


I would say B because we have a list of nouns, and some nouns have adjectives as well. Adjectives don't interfere with the nouns, so we have to look for an answer choice that would have either a noun or a noun with an adjective.


Why "split" in B is not past participle and therefore parallel to "volcanic eruptions" ?


<splitting apart of continents> is a gerund phrase, not a participle.

How to differentiate between a gerund phrase and a participle phrase ...
Consider the following sentences.
Splitting apart continents, the force was responsible for the spread of super continents.
The underlined part is a present participle phrase which modifies "force"

The catastrophic impacts of asteroids and comets may have caused splitting apart of continents
The underlined part is a gerund phrase. It functions as a noun (object). It doesn't modify anything.
In option A, a participle phrase is used. So, it's not parallel to noun phrases or nouns.
In option B, the error is corrected by using the gerund phrase.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 27 Nov 2015, 08:52
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We want to parallel : the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions

Some parallel rules to remember here:
- Simple gerunds can NEVER be PARALLEL to complex gerunds
- ONLY complex gerunds CAN be PARALLEL to action nouns
- When an appropriate action noun exists, choose it over a complex gerund


Since the onset of ice ages is a complex gerund and that eruption is an action noun, we can only have an action noun (if it exists) or another complex gerund to complete the parallel

Answer A is a simple gerund and there is no appropriate action noun in the other answer choices. So look for a complex gerund-- answer B

of note: a complex Gerund Starts by (a, an, the) or adjective, followed by ing + “of” prepositional. ie : The accurate tracking of satellites (complex) vs the (simple version) Tacking Satellites accurately
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 18 Dec 2015, 10:03
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Here you go: Check MGMAT SC chapter 10 or 11 if you have it

Concrete nouns vs action nouns vs complex and simple gerunds :


1/Concrete nouns: Refer to things, people, places dates… Ie: rock, continent, politician, holiday, week ...

2/Action nouns: Refers to action, they are formed from verbs Eruption, pollution, change, growth development etc

3/Simple Gerund: Include “ing”, presented as if they follow a verb
- ex: Tracking Satellites accurately is important
- Could be transformed into a working verb: I AM tracking satellites…

Complex Gerund: Starts by (a, an, the) or adjective, followed by ing + “of” prepositional
- ex: The accurate tracking of satellites is important…
- Of note: can also be under the form: the accurate satellites tracking – prefer the “of” version though


Parallel rules:


1.Concrete nouns are ONLY parallel to concrete nouns!
Wrong The bouquet was a giving of love
Correct The bouquet was a gift of love
- A giving is a complex gerund

2. Simple gerund are NEVER PARALLEL with complex gerunds
Wrong: I enjoyed drinking the water and the wine tasting
Correct I enjoyed drinking the water and tasting the wine
-drinking the water = simple gerund, the wine tasting = complex gerund

3. ONLY complex gerunds CAN PARALLEL with action nouns but when a proper action noun exists prefer it over a complex gerund
Wrong: The rebels demanded the withdrawal of the government forces from disputed regions, significant reductions in overall troop levels, raising the rebel flag on holidays, AND a general pardon
Correct: The rebels demanded the withdrawal of the government forces from disputed regions, significant reductions in overall troop levels, the raising of the rebel flag on holidays, AND a general pardon

Prefer an action noun over Gerund:
Wrong: The rebels demanded the withdrawal of the government forces from disputed regions AND releasing certain political prisoners (Simple Gerund used)
Wrong: The rebels demanded the withdrawal of the government forces from disputed regions AND THE releasing OF certain political prisoners (Complex Gerund used)
Correct: The rebels demanded the withdrawal of the government forces from disputed regions AND THE release OF certain political prisoners (action noun correctly used)
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 27 Jun 2017, 03:16
"The splitting" this acts as a complex gerund. And as stated in Manhattan SC guide, We should not mix complex gerunds and action Nouns (in our case eruptions).

Simple gerunds (I interpreted, Splitting to be a Simple gerund ) and actions nouns can be parallel.

So, IMO answer should have been A
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 28 Jun 2017, 13:18
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parasgarg99, take another look at our guide. We say that "of the two types of gerund phrases, only complex ones can be parallel to action nouns." The only problem would be if we inserted a simple gerund into the list. That's exactly what A does.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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New post 19 Jul 2017, 11:05
reversals in the Earth’s magnetic field, the onset of ice ages, splitting apart continents 80 million years ago, and great volcanic eruptions.

Notice the usage of prepositions. Only answer B does this well.
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Re: New theories propose that catastrophic impacts of asteroids and comets  [#permalink]

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Re: New theories propose that catastrophic impacts of asteroids and comets &nbs [#permalink] 16 Nov 2018, 00:22
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