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Geologists believe that the warning signs for a major

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Geologists believe that the warning signs for a major [#permalink]

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Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

A. changing the measured strain across a fault zone, and varying
B. changing measurements of the strain across a fault zone, and varying
C. changing the strain as measured across a fault zone, and variations of
D. changes in the measured strain across a fault zone, and variations in
E. changes in measurements of the strain across a fault zone, and variations among
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 18 Jul 2008, 09:22
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answer seem to be B again :?
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 18 Jul 2008, 10:08
apurva1985 wrote:
answer seem to be B again :?

Nope!! Try again :)
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 18 Jul 2008, 12:18
between B and D.(ll to original structure)

Orignal setence says "changing the measured strain" -->warning singn

B little distortion to thethe original meaning.
"changing measurements of the strain across" -- warning sign
--> chaning measurements -- warning sign

D -- changes in "measured strain"

D better than B.

Any other reasoning..????
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Last edited by x2suresh on 18 Jul 2008, 12:37, edited 2 times in total.
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Re: Geologists believe that the warning signs for a major [#permalink]

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goalsnr wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

A. changing the measured strain across a fault zone, and varying

B. changing measurements of the strain across afault zone, and varying

C. changing the strain as measured across a faultzone, and variations of

D. changes in the measured strain across a faultzone, and variations in

E. changes in measurements of the strain across a fault zone, and variations among



OA is D.

This SC i stesting for IIlism.
Geologists believe that the warning signs for a major earthquake may include A,B,C and D

Geologists believe that the warning signs for a major earthquake may include
-sudden fluctuations in local seismic activity,
-tilting and other deformations of the Earth's crust,
-changes in the measured strain across a faultzone, and
-variations in the electrical properties of underground rocks
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Re: Geologists believe that the warning signs for a major [#permalink]

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spriya wrote:
goalsnr wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

A. changing the measured strain across a fault zone, and varying -> eliminate since this is not in parallel with sudden fluctuations

B. changing measurements of the strain across afault zone, and varying -> eliminate

C. changing the strain as measured across a faultzone, and variations of -> eliminate

D. changes in the measured strain across a faultzone, and variations in -> BEST IMO (D)

E. changes in measurements of the strain across a fault zone, and variations among -> eliminate due to variations among which suggests preexistant variations and not the one which acts as indicator of quake.


Why isn't A correct? It is parallel to "tilting and other deformations of the Earth's crust"
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 19 Jul 2008, 06:03
Vemuri wrote:
spriya wrote:
goalsnr wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

A. changing the measured strain across a fault zone, and varying -> eliminate since this is not in parallel with sudden fluctuations

B. changing measurements of the strain across afault zone, and varying -> eliminate

C. changing the strain as measured across a faultzone, and variations of -> eliminate

D. changes in the measured strain across a faultzone, and variations in -> BEST IMO (D)

E. changes in measurements of the strain across a fault zone, and variations among -> eliminate due to variations among which suggests preexistant variations and not the one which acts as indicator of quake.


Why isn't A correct? It is parallel to "tilting and other deformations of the Earth's crust"


(A) is incorrect since sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust is to be viewed as a single clause and here tilting goes with seismic activity .We need to look for parallelism between fluctuations and changes .Hence (D) is perfect
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 15 Apr 2010, 10:34
I have to admit this one got me, but I now, I get it! The take-away here is to look for parallelism in parts of speech. With the "ing", it can be a verb or a noun. Once you figure it is a noun, all the others in the series have to also be a noun. Great question
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Geologists believe that the warning signs for a major [#permalink]

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326. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth’s crust, changing the measured stain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 24 Apr 2010, 09:07
D looks best of the lot... what is the OA ?
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 25 Apr 2010, 10:36
IMO D - due to parallelism
wats the OA ??
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 25 Apr 2010, 10:39
IMO D.

plural verb + adjective + noun
Only D survives this test.
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 25 Apr 2010, 10:43
Ok guys, as far as I know, noboru is not going to like if you simply choose one of the answers from the list. You need to explain why do you think a particular answer is correct.

and yeah, noboru is known for NOT posting the OA for long time... :wink:
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Re: Geologists believe that the warning signs for a major [#permalink]

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326. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth’s crust, changing the measured stain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

From sudden fluctuations and 'tilting and other deformations' we can see that we need noun forms to complete the parallelism.

B,D,E provide noun forms for the first party of the sentence and C,D,E provide the noun form for the second part 'variations'. Only D provides the correct idiomatic use of 'variations in'. We can zero in on the answer D actually just based on 'variations in'

'Variation of' and 'Variations among' are both wrong use of variations. Damn ! ..Had to google that for long to confirm.
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 27 Apr 2010, 07:54
I picked (E) but now understand that "variations among" is wrong

Good explanation by sanlitun
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 27 Apr 2010, 15:00
326. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth’s crust, changing the measured stain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
Here the fluctuations and changes are two independent signs and are equally important. Changes is not a sub warning sign. Hence it has to be changes.

(B) changing measurements of the strain across a fault zone, and varying -Not parallel
(C) changing the strain as measured across a fault zone, and variations of-this is verbose compared to A, also changing
(D) changes in the measured strain across a fault zone, and variations in -
(E) changes in measurements of the strain across a fault zone, and variations among - This is also verbose compared to D.
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 27 Apr 2010, 19:13
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my choice is D as it is very clear and has no mistakes. I am not an SC expert so i can't write more.
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 29 Apr 2010, 15:51
hgp2k wrote:
Ok guys, as far as I know, noboru is not going to like if you simply choose one of the answers from the list. You need to explain why do you think a particular answer is correct.

and yeah, noboru is known for NOT posting the OA for long time... :wink:


jeje, OK, you got it: OA is D.

Thank u all.

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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 12 Sep 2010, 06:35
First of all, i cant understand this question at all. but i surely know that it has something to do with parallelism.. See how i cracked it.. :)

the sentence says that there is more than one sign..
First one, is clearly given in the sentence..
The participial phrase can't be the sign.. because, it only modifies the independent phrase, just before the comma.
So,
A - out (there is no additional sign)
B - out (there is no additional sign again)
C - out (because, one participial phrase cant modify another participial phrase)
D - this is correct for me.. (maintains the parallelism with the first sign.. and variations in is the correct idiom)
E - variations among is wrong.

I know that this is a crazy way to choose.. :)
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Re: Geologists believe that the warning signs for a major [#permalink]

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New post 12 Sep 2010, 06:53
Good question, it look familiar.. can you say what's the source?
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Re: Geologists believe that the warning signs for a major   [#permalink] 12 Sep 2010, 06:53

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