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gdk800: Senior | Next Rank: 100 Posts; Posts: 54; Joined: Tue Feb 02, 2010 5:17 am; Thanked: 2 times

by gdk800 » Sun Feb 21, 2010 10:25 am

Question No. 117

New theories propose that catastrophic impacts of asteroids & comets may have caused reversals in 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

I can't get the reasoning given in the book

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Source: Beat The GMAT — Sentence Correction | Sun Feb 21, 2010 10:25 am

harsh.champ: Legendary Member; Posts: 1132; Joined: Mon Jul 20, 2009 3:38 amFollowed by: 6 members; Location: India; Thanked: 64 times; GMAT Score:760

by harsh.champ » Sun Feb 21, 2010 10:35 am

gdk800 wrote:Question No. 117

New theories propose that catastrophic impacts of asteroids & comets may have caused reversals in 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-MOre appropriate.(continents being a proper noun the should be used)
c) split apart continents
d) continents split apart
e) continents that were split apart

I can't get the reasoning given in the book

We are looking for an effect.
IMO B

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prinit: Master | Next Rank: 500 Posts; Posts: 183; Joined: Sun Oct 12, 2008 8:13 pm; Location: Greater NYC; Thanked: 14 times

by prinit » Sun Feb 21, 2010 10:37 am

gdk800 wrote:Question No. 117

New theories propose that catastrophic impacts of asteroids & comets may have caused reversals in 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

I can't get the reasoning given in the book

My pick is B. cause>effect may have caused the splitting apart of continents ..is perfect

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Rajat Khandelwal: Senior | Next Rank: 100 Posts; Posts: 79; Joined: Sun Feb 21, 2010 9:41 am

by Rajat Khandelwal » Sun Feb 21, 2010 10:39 am

here splitting......may refer to the action in the preceding clause...so to avoid that ambiguity participle has been converted into gerund , noun form...so as to adhere to the principal of parallelism---idea of equal rank should have same grammatical form...

I think it will do.

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