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# New techniques in thermal-scanning photography, a process

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Manager
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New techniques in thermal-scanning photography, a process [#permalink]

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09 Dec 2008, 07:23
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57% (01:10) correct 43% (01:14) wrong based on 1526 sessions

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New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.

(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
(E) has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river
[Reveal] Spoiler: OA

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09 Jun 2010, 11:51
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Yes i like the post. I will like to add one more thing -

We use simple present tense for - facts, habitual action.
e.g Sun rises in the East ( a fact)
Ron jogs 3 miles every morning (a habit)

I don't see any of these cases w.r.t "New techniques in thermal-scanning photography".
The statement is telling me that such new techniques which don't exist sometime in the past now exist and are useful to study the effects of blah blah in greater detail. The use of simple present tense make will NOT be correct.

blah blah = the effects of calefaction, or warming, of a river

Hence I go with present perfect - "have made it possible to study". C it is.

AbhayPrasanna wrote:
gaurav2k101 wrote:
Can anybody explain that why is option B not correct and C is the answer.

(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before

This is a subtle case of a misplaced modifier. We need "than ever before" to be directly linked to "study in greater detail"

Here it sounds more like we're saying "The effects of calefaction or warming of a river than ever before" which creates a disconnect from the intended comparison.

The excessive use of commas to create modifiers within modifiers is also awkward, though this is a secondary problem.

Placement of phrases is an important factor, and bears a higher priority than style or wordiness.

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09 Jun 2010, 08:55
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gaurav2k101 wrote:
Can anybody explain that why is option B not correct and C is the answer.

(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before

This is a subtle case of a misplaced modifier. We need "than ever before" to be directly linked to "study in greater detail"

Here it sounds more like we're saying "The effects of calefaction or warming of a river than ever before" which creates a disconnect from the intended comparison.

The excessive use of commas to create modifiers within modifiers is also awkward, though this is a secondary problem.

Placement of phrases is an important factor, and bears a higher priority than style or wordiness.

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09 Jun 2010, 22:53
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mustdoit wrote:
can you guys please clarify as to what does it refers to in option C.

have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river

Here the "it" is used as a pronoun to anticipate "the effects..."

"have made the effects of (...) possible to study in greater detail..."

The pronoun is introduced before the antecedent.

eg. I love it when the sky is clear.
or, Your abstruse approach makes it difficult to understand the solution.

We are describing the antecedent using a pronoun modifier. This is perfectly acceptable.

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12 Oct 2010, 07:49
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By rule of grammar, - make it possible - is not ungrammatical although -have made it possible - conveys the meaning of the context better; Secondly the word order in B is erroneous with - than ever before - modifying the warming of a river. It should rightly modify - in greater detail - as in C.
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09 Jun 2010, 08:38
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Can anybody explain that why is option B not correct and C is the answer.
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09 Jun 2010, 22:43
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can you guys please clarify as to what does "IT" refers to in option C.

have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
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18 Jun 2010, 03:17
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I went with B over C although I liked it for its present perfect tense because "the effects of calefaction, or warming, of a river" in C is just way too detached from "the study". Almost like by the time I got to "the effects.... ", kind of lost focus of "the study"..... B did better on that front by giving sufficient emphasis to the content of the study (inspite of the commas and all)

GMAT english seems to be very different from everyday English- but then not like I'm a native English speaker anyway
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03 Aug 2010, 13:39
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New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study
the effects of calefaction, or warming, of a river in greater detail than ever before.
(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
phrase "in greater detail than ever before" modifies the verb and should be placed right next to it
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
"in greater detail than ever before" should not be separated. Otherwise, we need another subject and a verb to make it work.
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river. Correct
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before. They key here, I believe, "the study in greater detail" is inferior to "to study in greater detail. A study that is more detailed than ever before would have made D more attractive than it is now.\

(E) has made it possible than ever before to study in greater detail the effects of calefaction, or warming, of a river subject-verb agreement
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In this SC problem, I am having a hard time understanding [#permalink]

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11 Oct 2010, 19:42
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In this SC problem, I am having a hard time understanding the rule regarding selecting "have made it" in answer choice (C) over "makes it" in answer choice (B). Doesn't the subject "techniques" require "makes"?

Thanks for any advice you all can provide me.

New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.

a. makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before

b. make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before

c. have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river

d. make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before

e. has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river

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01 Jan 2011, 09:47
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I would go for C
I have close choose between B,C.

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Re: New techniques in thermal-scanning photography, a process [#permalink]

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17 Jun 2013, 10:25
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C is the answer - clear meaning and comparison usage of 'greater...than'

A & E - wrong - because of subject verb
B - wrong because greater ... than are not connected
D-wrong - bad structure - 'make possible ????'

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09 Dec 2008, 09:37
B

techniques (plural).........make it.....

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09 Dec 2008, 18:42
C
have made it possible....than ever before

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11 Dec 2008, 11:19
IMO C

(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before (Techniques - should be make)
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before (in greater detail is wrongly placed)
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river ---- Correct
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before (make possible the study is wrong)
(E) has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river ---- (Techniques ----should be have)

Last edited by jahnaviyeruva on 11 Dec 2008, 17:47, edited 1 time in total.

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13 Feb 2009, 20:35
OA is C

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New techniques in thermal-scanning photography, a process [#permalink]

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09 Aug 2009, 12:55
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New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.
(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
(E) has made it possible than ever before to study in greater detail the effects of calefaction, or warming, of a river

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09 Aug 2009, 14:32
C?

1- Subject: New techniques -> A,E out
2- greater requires than -> B out
3- D is, as the OG would say, AWKWARD
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09 Aug 2009, 23:55
Than is there in B.
Why do we require perfect tense here?
IMO B

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10 Aug 2009, 00:04
IMO C
A & E - have subj-verb agreement error. New techniques -- have/make
B - not sure if it is out rightly wrong to have than ever before at the end of the sentence, but I would certainly prefer to have it just after in greater detail
There is one more way to look at this sentence
New techniques in thermal-scanning photography, a process that records radiation from surface areas, make it possible to study, [strike]in greater detail,[/strike] the effects of calefaction, or warming, of a river than ever before. This sentence is incomplete.
D - wordy and awkward.

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Re: new techniques SC   [#permalink] 10 Aug 2009, 00:04

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