It is currently 23 Nov 2017, 20:53

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The discovery that Earths inner core rotates independently

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Top Contributor
Verbal Forum Moderator
avatar
Joined: 05 Nov 2012
Posts: 529

Kudos [?]: 650 [0], given: 606

Concentration: Technology, Other
GMAT ToolKit User Premium Member Reviews Badge
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 01 Aug 2016, 09:25
Top Contributor
I chose B over A because of the wording "the flow of heat from the inner through the outer planet " . Request inputs from other members on this...
_________________

--------------------------------------------------------
Regards :)

Kudos [?]: 650 [0], given: 606

Manager
Manager
User avatar
B
Joined: 18 May 2016
Posts: 63

Kudos [?]: 7 [0], given: 97

Location: India
GMAT 1: 700 Q49 V35
GMAT 2: 700 Q49 V35
WE: Consulting (Non-Profit and Government)
Reviews Badge
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 15 May 2017, 07:52
I also did not choose option A, as it is unclear what "inner" refers to, does it imply inner planet or inner layers or inner core? Experts please advise!

Posted from my mobile device
_________________

GMAT chronicles : 670-->660--> 700--> 650--> 680-->660--> 610-->700 (main exam)-->710--740-->700 (main exam again) -->Target 740+

Never never never never NEVER give up!!


I can and I will- watch me.

Kudos [?]: 7 [0], given: 97

Manager
Manager
avatar
B
Joined: 06 May 2015
Posts: 68

Kudos [?]: 2 [0], given: 1

CAT Tests
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 15 May 2017, 08:00
raghavs wrote:
The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

A. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

And of the is repetition.

B. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field
Correct Answer B

C. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

Verb are responsible is plural for singular subject The discovery


D. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field
Same as C


E. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction

Verb-ing is incorrectly used .




Sent from my iPhone using GMAT Club Forum mobile app

Kudos [?]: 2 [0], given: 1

Director
Director
User avatar
S
Joined: 27 Mar 2010
Posts: 742

Kudos [?]: 322 [0], given: 13

Location: Bangalore, India
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 15 May 2017, 09:54
GmatBawse wrote:
I also did not choose option A, as it is unclear what "inner" refers to, does it imply inner planet or inner layers or inner core? Experts please advise!

Posted from my mobile device

Hi GmatBawse, B has an issue with parallelism. Clearly, from a parallelism perspective, the structure of B is:

....responsible for advancing studies of X and Y, where:

i) X: how heat from the inner core flows through the outer planet, (this is a clause)

ii) Y: the formation and periodic reversal in direction of Earth’s magnetic field (this is a phrase)

Since X and Y are the logically similar parts of the sentence, these parts must be grammatically similar as well. However, while X is a clause, Y is a phrase. Hence, X and Y are not grammatically similar. So, option B fails the parallelism test.

p.s. Our book EducationAisle Sentence Correction Nirvana discusses Parallelism in Phrases and Clauses, its application and examples in significant detail. Have attached the corresponding section of the book, for your reference.
Attachments

Parallelism - Phrases and Clauses.pdf [22.62 KiB]
Downloaded 49 times

To download please login or register as a user


_________________

Thanks,
Ashish (GMAT Faculty @ EducationAisle)
http://www.EducationAisle.com

Sentence Correction Nirvana available at Amazon.in and Flipkart

Now! Preview the entire Grammar Section of Sentence Correction Nirvana at pothi.com

Kudos [?]: 322 [0], given: 13

Verbal Forum Moderator
User avatar
P
Joined: 19 Mar 2014
Posts: 973

Kudos [?]: 243 [0], given: 195

Location: India
Concentration: Finance, Entrepreneurship
GPA: 3.5
GMAT ToolKit User Premium Member CAT Tests
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 01 Jul 2017, 14:48
raghavs wrote:
The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

A. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

B. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

C. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

D. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

E. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction


SV Error in C & D Discovery ==> Should be "is" not "are"

E misses the parallelism

B - misses parallelism too


Answer is A

_________________

"Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not: the world is full of educated derelicts. Persistence and determination alone are omnipotent."

Worried About IDIOMS? Here is a Daily Practice List: https://gmatclub.com/forum/idiom-s-ydmuley-s-daily-practice-list-250731.html#p1937393

Best AWA Template: https://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html#p470475

Kudos [?]: 243 [0], given: 195

Manager
Manager
User avatar
B
Joined: 12 Dec 2016
Posts: 93

Kudos [?]: 6 [0], given: 43

Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 24 Oct 2017, 23:30
Very long and intimidating, but at its core, this problem is not too complex, and rests largely on understanding the author's intended meaning.

"The discovery that..." should alert you that there subject-verb agreement is going to be tested. Anyway, continue reading. Original sentence too wordy, but the author's intended meaning is clear: the discovery is responsible for something.

Vertically scan the answer choices. Eliminate C and D for wrong subject-verb agreement. discovery is not discovery are

Eliminate B for parallelism issues.The discovery blah blah blah is responsible for advancing studies of how, AND the formation ... . The second of is missing after the parallel marker 'and.'

Eliminate E. If we eliminate the modifier,rotating independently of and more quickly than Earth’s outer layers, we get the discovery that the Earth's inner
core is responsible for advancing studies...
. This doesn't make sense.

POE, leaves you with A.
_________________

Give me kudos and see what happens to your GMAT score :-)

Kudos [?]: 6 [0], given: 43

VP
VP
User avatar
G
Status: Learning
Joined: 20 Dec 2015
Posts: 1083

Kudos [?]: 82 [0], given: 541

Location: India
Concentration: Operations, Marketing
GMAT 1: 670 Q48 V36
GRE 1: 314 Q157 V157
GPA: 3.4
WE: Manufacturing and Production (Manufacturing)
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 25 Oct 2017, 05:34
raghavs wrote:
The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

A. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

B. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

C. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

D. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

E. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction


The answer is A

The subject is "The discovery" which is singular so we have to use singular verb so C and D are out
Second difference is parallelism the discovery led to advance studies of X and of Y
So A has proper parallelism.
_________________

We are more often frightened than hurt; and we suffer more from imagination than from reality

Kudos [?]: 82 [0], given: 541

Intern
Intern
avatar
B
Joined: 26 Feb 2017
Posts: 21

Kudos [?]: 1 [0], given: 62

Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 28 Oct 2017, 00:25
Hi, i have a general question. Whenever there is a 2/3 split (most of the cases), can we be sure that the answer would like amongst the 3 answer choices reduced from the split.

Kudos [?]: 1 [0], given: 62

Intern
Intern
User avatar
B
Joined: 05 Oct 2014
Posts: 49

Kudos [?]: 6 [0], given: 152

Location: India
Concentration: General Management, Strategy
Schools: NTU '19
GMAT 1: 580 Q41 V28
GPA: 3.8
WE: Project Management (Energy and Utilities)
Re: The discovery that Earths inner core rotates independently [#permalink]

Show Tags

New post 22 Nov 2017, 11:45
raghavs wrote:
The discovery that Earth’s inner core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field.

A. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth’s magnetic field

B. core rotates independently of and more quickly than Earth’s outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

C. core rotates independently and more quickly than Earth’s outer layers are responsible for advancing studies of how heat from the inner core flows through the outer planet, and how Earth’s magnetic field forms and the periodic reversal of its direction

D. core, rotating independently and more quickly than Earth’s outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth’s magnetic field

E. core, rotating independently of and more quickly than Earth’s outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth’s magnetic field forms and the periodic reversal of its direction



Point -1: ‘The discovery that Earth’s inner core rotates…’ is correct, not ‘The discovery that Earth’s inner core, rotating…’
Point -2: We never use ‘independently than’, for example ‘The sun shines independently of any climate change’.
So applying parallelism concept i.e ‘The core rotates independently and more quickly than….’ over here is wrong. The correct one should ne ‘independently of and more quickly than’. Than is used here for the comparative form of quick.

C,D,E are out . We are now left with A,B.
In B , the 2nd part of the sentence not parallel - ‘how heat from the inner core flows through the outer planet, and the formation and periodic reversal…’ So option B is out.
So by process o f elimination A is right answer

Kudos [?]: 6 [0], given: 152

Re: The discovery that Earths inner core rotates independently   [#permalink] 22 Nov 2017, 11:45

Go to page   Previous    1   2   [ 29 posts ] 

Display posts from previous: Sort by

The discovery that Earths inner core rotates independently

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.