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# Tektites, which may have been propelled to Earth from lunar

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VP
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Tektites, which may have been propelled to Earth from lunar [#permalink]

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26 Apr 2005, 12:38
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Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian, but their chemical composition is different than any terrestrial lava; they contain far less water than obsidian does and none of its characteristic microcrystals.
(A) is different than any terrestrial lava; they contain
(B) is different than any terrestrial lavaâ€™s, containing
(C) is different from that of any terrestrial lava; they contain
(D) differs from any terrestrial lava in containing
(E) differs from that of any terrestrial lavaâ€™s, containing
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VP
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26 Apr 2005, 13:54
C)...the right idiom is "different from". A) and B) are out. D) is out because it compares chemical composition to the lava. E) is out because it is not clear if "containing" refers to "lava" or to "composition".
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26 Apr 2005, 16:35
MA wrote:
Among C, D & E. I will go with C.

- I see what you mean

Last edited by rthothad on 26 Apr 2005, 16:44, edited 1 time in total.
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26 Apr 2005, 16:42
MA wrote:
Among C, D & E. I will go with C.

i thot that was weird too
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Re: SC: Tektites [#permalink]

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26 Apr 2005, 17:55
banerjeea_98 wrote:
Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian, but their chemical composition is different than any terrestrial lava; they contain far less water than obsidian does and none of its characteristic microcrystals.
(A) is different than any terrestrial lava; they contain
(B) is different than any terrestrial lavaâ€™s, containing
(C) is different from that of any terrestrial lava; they contain
(D) differs from any terrestrial lava in containing
(E) differs from that of any terrestrial lavaâ€™s, containing

I think C is flawed too ..."They" looks suspicious....I would go with D
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26 Apr 2005, 20:16
It is (C) for Parallelism.

(D): "in containing far less water than obsidian does .." : wrong : "does" does not have any verb to refer.
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28 Apr 2005, 07:38
OA is "C"
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28 Apr 2005, 12:07
banerjeea_98 wrote:
OA is "C"

A, B eliminated because of "different from".....

Both C and E seen right.

I chose C. But i aint sure what is wrong with E.

IC = Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian, but their chemical composition differs from that of any terrestrial lavaâ€™s

Phrase [Participle modifying Subject Teckites] = containing far less water than obsidian does and none of its characteristic microcrystals.

IC, Phrase

Any explain what is wrong with E???
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29 Apr 2005, 04:20
E says as if the chemical composition contains far less water-------

but it is tektites, which contains far less water-----.

thats why E is wrong and C correct.
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29 Apr 2005, 14:41
dipaksingh wrote:
E says as if the chemical composition contains far less water-------

but it is tektites, which contains far less water-----.

thats why E is wrong and C correct.

To me here is what E says:

Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian, but their chemical composition differs from that of any terrestrial lavaâ€™s, containing far less water than obsidian does and none of its characteristic microcrystals.

the phrase in green is an absolute phrase modifying the subject Tektities. Absolute phrases dont have to modify the noun right next to it. It could modify a) a subject of the previous clause b) object of a previous clause or c) the entire clause.

Any solid explanations why?
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29 Apr 2005, 20:41
gmataquaguy,

"their chemical composition differs from that of any terrestrial lavaâ€™s, containing far less water than obsidian does and none of its characteristic microcrystals". --- this is a independent clause joined to another independent clause with the help of a coordinating conjunction "but".

the other I.clause is " Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian"

again the possesive form (lava's) is wrong.

E compares "chemical composition of tektitis" with "chemical composition of lava's containing far less water----" isn't it wrong.
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01 May 2005, 17:10
dipaksingh wrote:
gmataquaguy,

"their chemical composition differs from that of any terrestrial lavaâ€™s, containing far less water than obsidian does and none of its characteristic microcrystals". --- this is a independent clause joined to another independent clause with the help of a coordinating conjunction "but".

the other I.clause is " Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian"

again the possesive form (lava's) is wrong.

E compares "chemical composition of tektitis" with "chemical composition of lava's containing far less water----" isn't it wrong.

I dont agree with your comparison. Here is why:

Here is what the IC after but says in E.

their [Tekkites] chemical composition differs from that of any terrestrial lavaâ€™s.
Step1:
The possessive form of lava is correct because enables comparison between Teckites's chemical composition and lava's.

This statement is analogous to

My car is faster than Jane's ----> Here Jane's = Jane's care [implicit].

Step2:

IC, containing far less water than obsidian does and none of its characteristic microcrystals.

I'm saying that "containing....." isnt a participle phrase. Its an absolute phrase that modifies the subject teckites.

Please read absolute phrases from [http://webster.commnet.edu/grammar/phrases.htm#participial] and http://www.gmatclub.com/phpbb/viewtopic.php?t=1540

and you will see why i'm asking these questions.
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01 May 2005, 18:19
either you have the "possesive form" or you use the construction "that of", but not both.

My car is faster than Jane's ----> - CORRECT

My car is faster than that of Jane ----> - CORRECT

My car is faster than that of Jane's ----> INCORRECT
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01 May 2005, 19:54
dipaksingh wrote:
either you have the "possesive form" or you use the construction "that of", but not both.

My car is faster than Jane's ----> - CORRECT

My car is faster than that of Jane ----> - CORRECT

My car is faster than that of Jane's ----> INCORRECT

Di,
Good Call - i didnt know about this rule!!! Will the OP please confirm that the aphostrophe wasnt a typo. If not then your explanation is good!! Could you point me to some online documentation on the aforementioned rule. Just wanna read it to validate some of my other queries about possesives.....
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02 May 2005, 10:17
sorry i dont remember at present any site where you will get this ,but please check "comparision" section on any of the "english usage" sites. most probably you will get it some where.
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08 May 2005, 19:07
gmataquaguy wrote:
dipaksingh wrote:
either you have the "possesive form" or you use the construction "that of", but not both.

My car is faster than Jane's ----> - CORRECT

My car is faster than that of Jane ----> - CORRECT

My car is faster than that of Jane's ----> INCORRECT

Di,
Good Call - i didnt know about this rule!!! Will the OP please confirm that the aphostrophe wasnt a typo. If not then your explanation is good!! Could you point me to some online documentation on the aforementioned rule. Just wanna read it to validate some of my other queries about possesives.....

Ban, could you please reconfirm that the aphostrophe wasnt a typo
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08 May 2005, 21:15
dipaksingh wrote:
either you have the "possesive form" or you use the construction "that of", but not both.

My car is faster than Jane's ----> - CORRECT

My car is faster than that of Jane ----> - CORRECT

My car is faster than that of Jane's ----> INCORRECT

Yes, that's exactly the reason I would choose C over E.
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Re: Tektites, which may have been propelled to Earth from lunar [#permalink]

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06 Aug 2014, 09:51
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Tektites, which may have been propelled to Earth from lunar [#permalink]

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29 Jul 2016, 00:29
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: Tektites, which may have been propelled to Earth from lunar   [#permalink] 29 Jul 2016, 00:29
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# Tektites, which may have been propelled to Earth from lunar

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