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# In 1974 a large area of the surface of Mercury was photographed from

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In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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Updated on: 29 Nov 2018, 23:36
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Difficulty:

5% (low)

Question Stats:

80% (00:53) correct 20% (01:07) wrong based on 1286 sessions

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In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.

(A) which revealed a degree of cratering similar to that of the Moon’s

(B) to reveal a degree of cratering similar to the Moon

(C) revealing a degree of cratering similar to that of the Moon

(D) and revealed cratering similar in degree to the Moon

(E) that revealed cratering similar in degree to that of the Moon

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Originally posted by Gnpth on 04 Jul 2016, 03:40.
Last edited by hazelnut on 29 Nov 2018, 23:36, edited 2 times in total.
Edited the question.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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28 Sep 2016, 00:00
4
3
deepthit wrote:
can someone explain why E is wrong ?
Is it just about the tense in option E ?

E is wrong because of the wrong usage of 'that'.

Remember, on GMAT that should never be preceded by a comma. 'That' is an essential modifier that should be attached directly to the entity it modifies.
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##### General Discussion
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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04 Jul 2016, 10:26
Not getting why option B is incorrect
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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04 Jul 2016, 10:45
2
1
shonakshi wrote:
Not getting why option B is incorrect

In option B the degree of cratering is compared to moon.
The correct comparison should be the degree of cratering of Venus with the degree of cratering of moon
Instead of writing the full sentence we can write that of the moon
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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04 Jul 2016, 19:46
5
this is really a modifier and comparison question.

Without question, A, B and D can be eliminated because the comparison is not equal. There must be 'that of' that refers back to surface.

Between C and E is much more difficult.
'revealing' is a participial modifier which modifies the entire noun phrase.
'That' is a relative clause that modifies the subject 'area',

therefore the answer choice is C.

Please let me know if I am wrong about the modifier as I may not be entirely correct.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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24 Sep 2016, 00:19
1
OG explaination says in (A) "which" is correct. Says that it is an appositive clause expressing what imaging of mercury found.
This is new to me. Can some one explain how "which" is correct here?
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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24 Sep 2016, 11:23
3
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arpitgarg wrote:
OG explaination says in (A) "which" is correct. Says that it is an appositive clause expressing what imaging of mercury found.
This is new to me. Can some one explain how "which" is correct here?

First, the term "appositive" here does not indicate the commonly accepted meaning: a noun modifying a noun. Some grammarians use the term "appositive relative clause" to indicate what we generally call "non-essential modifiers". (But in GMAT the jargon does not matter.)

This is very odd indeed. This may be one of the rare occasions in which one OG explanation contradicts another. The relative pronoun "which" does not have a noun to refer to - the second part should modify the entire clause and a present participle modifier "revealing..." is correct.

I would seek further advice from the expert of the experts mikemcgarry .
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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27 Sep 2016, 23:52
can someone explain why E is wrong ?
Is it just about the tense in option E ?
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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28 Sep 2016, 01:23
3
Another problem is that a modifier starting with "that" will be a noun modifier, and must therefore modify the preceding noun. The distances themselves didn't reveal the cratering. C correctly uses an adverbial modifier (", revealing . . . ") to indicate that this revelation is a result of the entire preceding clause.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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17 Dec 2016, 08:16
1
Gnpth wrote:
In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.

A. which revealed a degree of cratering similar to that of the Moon’s
B. to reveal a degree of cratering similar to the Moon
C. revealing a degree of cratering similar to that of the Moon
D. and revealed cratering similar in degree to the Moon
E. that revealed cratering similar in degree to that of the Moon

Hello,

I got this one right, but I have one doubt.

As per my understanding, ing modifier must make sense with the subject and the action of the previous clause. However, in the sentence there is no active subject present. The photograph was taken, but who took the photograph is not clear. So, can we use ing modifer with passive construction ?

sayantanc2k : Could you please explain ?

Thanks !
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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22 Dec 2016, 11:39
karant, the modifier does need to make sense in relation to the preceding clause, but it doesn't need to refer to a person who performed the action. It just explains the result of the action. A large area was photographed, and this revealed the cratering. It doesn't matter who took the photograph. It was probably automated, anyway.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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20 Feb 2017, 10:33
2
In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.

Issue: Modifier

Analysis:
1. Since "," is not underlined, it is pretty easy to eliminate wrong answers.
2. ", verb-ing" is used to modify the whole clause preceding "comma" and this is what we need here.

A. which revealed a degree of cratering similar to that of the Moon’s
- ", which" modifies the noun immediately preceding the comma. In this case it has been used incorrectly to refer to the action "photographed"

B. to reveal a degree of cratering similar to the Moon
- ", to" is ungrammatical
- "degree of cratering" has been compared to "the Moon", leading to comparison error

C. revealing a degree of cratering similar to that of the Moon

D. and revealed cratering similar in degree to the Moon
- "and revealed ... " clause is missing subject
- "degree of cratering" has been compared to "the Moon", leading to comparison error

E. that revealed cratering similar in degree to that of the Moon
- ", that" is the wrong modifier here.

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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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22 Mar 2017, 03:17
1
A. Can be knocked off - Incorrect placement of the Relative Pronoun, ‘which’- Pronoun error. INCORRECT
B. The Pronoun error is rectified in this option. However, it can be knocked off because ‘the degree of cratering is incorrectly compared to the moon. Incorrect- Comparison Error. INCORRECT.
C. Correct usage of the adverbial modifier, ‘revealing’. It correctly refers to the action, ‘was photographed……’ the action revealed a degree of cratering. Correct comparison- cratering similar to that of the moon’ (Correct Answer)-
D. Wrong Comparison… Cratering is compared to ‘Moon”- ( Comparison Error)-INCORRECT
E. ‘That’ appears to modify distances- error similar to that in Option A..INCORRECT
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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22 Mar 2017, 14:14
2
In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.

A. which revealed a degree of cratering similar to that of the Moon’sModifies the distance.
B. to reveal a degree of cratering similar to the Moonthe degree of cratering ws not the motive of the photographs,change in meaning
C. revealing a degree of cratering similar to that of the Moon Verb+ing after comma modifies the clause.correct choice
D. and revealed cratering similar in degree to the Moon no noun or subject.
E. that revealed cratering similar in degree to that of the Moon that is wrong modifier.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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30 Jun 2017, 10:30
5
shonakshi wrote:
Not getting why option B is incorrect

I have a simple explanation.
If you look at the original sentence and concentrate on its meaning--- It says Nothing about the 'purpose' of the 'Photograph' being taken.
The Result just happened simultaneously
Whereas For B-- The Result of 'finding the similarity in craters' is because of deliberately 'Photographing' the landscape.

In short B changes the meaning of A drastically, although it is a grammatically correct sentence.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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29 Sep 2017, 18:02
I am able to eliminate all the options. But i have another doubt.
Does using either 'a degree of catering' or 'cratering similar in degree' change the meaning of the sentence?
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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29 Sep 2017, 20:48
1
cubs, there is a difference in meaning, although here it's not crucial. The difference is in what is revealed: cratering or the degree of cratering. Did we learn that cratering exists, or did we learn how much cratering there is? I could imagine going with the usage in E even if the craters were already known, but "revealing a degree" shows more clearly that what we discovered was how much cratering there is.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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05 Jul 2018, 00:05
In 1974 a large area of the surface of Mercury was photographed from varying distances, which revealed a degree of cratering similar to that of the Moon’s.

A. whichrevealed a degree of cratering similar to that of the Moon’s
which only can jump to refer "a large area" or "varying distances", non of which is make sense. it's not possible that "a large area" or "distances" revealed similarity.Thus, A is wrong.
B. to reveal a degree of cratering similar to the Moon
flaw1: "To"express a kind of purpose. but, it's not with the purpose of revealing similarity and then take photo. it should be the photo, which revealed something.
flaw2: this option is comparing degree to moon, wrong.
B out!

C. revealing a degree of cratering similar to that of the Moon
Correct!
D. and revealed=#ff0000]cratering [/color]similar in degree to the Moon
flaw 1:the relationship between "take photo" and "reveal something" should be cause-result, not parallel.
flaw 2: same with B.
D out!

E. that revealed cratering similar in degree to that of the Moon
same flaw with A.
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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29 Nov 2018, 23:13
I understand why C is correct, but I didn't understand why A was incorrect so I selected A initially. Then I read the OG and I now understand that the reason C is correct is the same reason A is incorrect.

(A) "which revealed a degree of cratering similar to that of the Moon$$'s$$"

The comma + which modifier is correctly used.
However we have a redundancy error caused by the conflict between the relative pronoun "that" and possessive "Moon's".

Substitution will make this easier to see:
, "which revealed a degree of cratering similar to that (cratering) of the Moon's (cratering)" - it's hard to see without substitution, but it's logical to conclude (A) is redundant.

(C) "revealing a degree of cratering similar to that of the Moon"

This is correct and here are the rules you need to understand to see this :
Verb-ing modifier:
- If separated by comma, modifies preceding clause and associates with the subject
- If separated by comma, modifies the following clause or modifies only the subject
- If not separated by comma, modifies the noun

That is a relative pronoun that has a number of rules but here are the ones relevant to this:
- Relative pronouns must be placed close to the noun they modify otherwise it will be incorrect:
- substitute the antecedent for the relative pronoun to confirm agreement and meaning
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Re: In 1974 a large area of the surface of Mercury was photographed from  [#permalink]

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04 Feb 2019, 19:58
why "which" does't refer to Distances ? As per my limited knowledge it is acting as a relative pronoun here.
it would be great help if someone could elaborate.
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Re: In 1974 a large area of the surface of Mercury was photographed from   [#permalink] 04 Feb 2019, 19:58

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