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The Earth is composed of many layers

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The Earth is composed of many layers [#permalink]

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New post 02 Oct 2017, 06:44
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B
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Difficulty:

  35% (medium)

Question Stats:

69% (01:33) correct 31% (01:07) wrong based on 189 sessions

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The Earth is composed of many layers, and if the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before scientists can predict.
A- the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before
B- the iron in its core moves significantly it changes the Earth’s magnetic field, sometimes more significantly than
C- It moves the iron in its core it changes the Earth’s magnetic field, sometimes more significantly,
D- they move the iron in the core it changes the Earth’s magnetic field, because sometimes more significantly than
E- they move the iron in the core the Earth’s magnetic field is changed, sometimes more significantly



Hi folks .. this question is from ready4gmat app freely available . I marked A
[Reveal] Spoiler: OA

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Re: The Earth is composed of many layers [#permalink]

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New post 02 Oct 2017, 07:58
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mbaaspirant80 wrote:
The Earth is composed of many layers, and if the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before scientists can predict.
A- the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before
B- the iron in its core moves significantly it changes the Earth’s magnetic field, sometimes more significantly than
C- It moves the iron in its core it changes the Earth’s magnetic field, sometimes more significantly,
D- they move the iron in the core it changes the Earth’s magnetic field, because sometimes more significantly than
E- they move the iron in the core the Earth’s magnetic field is changed, sometimes more significantly



Hi folks .. this question is from ready4gmat app freely available . I marked A


We can do 3:2 split by concentrating on idiom "more ..than "...
this will eliminate A,C,and E.
now D --They is wrong ..
left with B ...

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Re: The Earth is composed of many layers [#permalink]

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New post 12 Oct 2017, 01:28
What does "it" refer to in choice B? Can anyone please explain?

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Re: The Earth is composed of many layers [#permalink]

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New post 05 Nov 2017, 18:50
Dear Experts,

I am confused in the usage of the pronoun "it" in Option B, as the sentence says "it changes the Earth's..."
it may refer to the core or iron.
Actually, "it" should present the result of iron in the core moving significantly.


Pl correct.

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Re: The Earth is composed of many layers [#permalink]

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New post 08 Nov 2017, 06:50
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SAHILJPR wrote:
Dear Experts,

I am confused in the usage of the pronoun "it" in Option B, as the sentence says "it changes the Earth's..."
it may refer to the core or iron.
Actually, "it" should present the result of iron in the core moving significantly.


Pl correct.


Though your point is valid, option B is acceptable. By virtue of parelleism "it" refers to "iron" (If there are more than one possible antecedents for a pronoun subject, the pronoun subject refers to a noun subject (of another clause in the sentence) rather than a noun which is not a subject).

Also, it makes sense to say that the iron changes the magnetic field (because it moved).

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Re: The Earth is composed of many layers [#permalink]

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New post 08 Nov 2017, 06:58
SAHILJPR wrote:
Dear Experts,

I am confused in the usage of the pronoun "it" in Option B, as the sentence says "it changes the Earth's..."
it may refer to the core or iron.
Actually, "it" should present the result of iron in the core moving significantly.


Pl correct.


Referring to your comment ""it" should present the result of iron in the core moving significantly":

"It" cannot refer to the "result". The result IS the change in the magnetic field. It does not make sense to say that the result of the movement (i.e. the the change in magnetic filed) changes to the magnetic field.

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Re: The Earth is composed of many layers [#permalink]

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New post 08 Nov 2017, 08:18
mbaaspirant80 wrote:
The Earth is composed of many layers, and if the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before scientists can predict.
A- the iron in its core is moved the Earth’s magnetic field is changed, sometimes more significantly before
B- the iron in its core moves significantly it changes the Earth’s magnetic field, sometimes more significantly than
C- It moves the iron in its core it changes the Earth’s magnetic field, sometimes more significantly,
D- they move the iron in the core it changes the Earth’s magnetic field, because sometimes more significantly than
E- they move the iron in the core the Earth’s magnetic field is changed, sometimes more significantly



Hi folks .. this question is from ready4gmat app freely available . I marked A


In option A ( if the iron in its core is moved) sounds like someone is going to move the iron. This is not what author is trying to say. He is saying If the iron in its core moves ..

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Re: The Earth is composed of many layers   [#permalink] 08 Nov 2017, 08:18
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