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Mineralogists have determined that some rocks’ hardness, especially di

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Manager
Joined: 01 Jan 2017
Posts: 64
WE: General Management (Consulting)
Mineralogists have determined that some rocks’ hardness, especially di  [#permalink]

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27 Oct 2019, 03:32
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15% (low)

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81% (01:07) correct 19% (01:05) wrong based on 32 sessions

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Mineralogists have determined that some rocks’ hardness, especially diamonds, is incomparable to any other natural material known to this day.

(A) some rocks’ hardness, especially diamonds, is incomparable to any other natural material

(B) the hardness of some rocks, especially of diamonds, cannot be compared to the hardness of any other natural material

(C) the fact that some rocks are hard, especially diamonds, is incomparable to the hardness of any other natural material

(D) no natural material can be compared to the hardness of some rocks, especially of diamonds.

(E) some rocks’ hardness, and especially of diamonds, is difficult to be compared to any other hard material.
Senior Manager
Joined: 23 Nov 2018
Posts: 254
GMAT 1: 650 Q49 V28
GPA: 4
Re: Mineralogists have determined that some rocks’ hardness, especially di  [#permalink]

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27 Oct 2019, 06:55
(A) some rocks’ hardness, especially diamonds, is incomparable to any other natural material
Comparing hardness of a rock to another rock is illogical
we can compare one type of rock with another type of rock or
we can compare the hardness of one rock with the hardness of another rock

(B) the hardness of some rocks, especially of diamonds, cannot be compared to the hardness of any other natural material
option B nails the comparison

(C) the fact that some rocks are hard, especially diamonds, is incomparable to the hardness of any other natural material
the fact is illogically compared to the hardness

(D) no natural material can be compared to the hardness of some rocks, especially of diamonds.

and no natural material should be! as stated in option A we cannot compare the natural material with the "hardness" of another natural material

(E) some rocks’ hardness, and especially of diamonds, is difficult to be compared to any other hard material.
option E distorts the meaning of the sentence we are meant to compare the hardness of a natural material to the hardness of another rock and not with just any hard material in the nature.
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Re: Mineralogists have determined that some rocks’ hardness, especially di   [#permalink] 27 Oct 2019, 06:55
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