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# Unlike birds, which are highly sensitive to atmospheric pres

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Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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10 Dec 2013, 10:44
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Difficulty:

95% (hard)

Question Stats:

44% (01:53) correct 56% (01:43) wrong based on 951 sessions

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Unlike birds, which are highly sensitive to atmospheric pressure, people have found that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity.

a) that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

b) the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity

c) that paragliding requires the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

d) paragliding to require the use of a variometer due to the fact that detecting thermal currents is not possible with the use of normal human motion sensitivity

e) that paragliding requires the use of a variometer since detected thermal currents are impossible to handle using normal human motion sensitivity

Is there a modifier issue in official answer? What do you guys think?
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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10 Dec 2013, 11:47
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Hi nechets

Unlike birds, which are highly sensitive to atmospheric pressure, people have found that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity.

a) that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity
Wrong. S-V agreement. "paragliding" and "detecting" are singular nouns --> "require" and "are" are wrong.

b) the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity
Correct. B uses placeholder "it". There is NO antecedent for "it".

c) that paragliding requires the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity
Wrong. S-V agreement. "detecting" is singular.

d) paragliding to require the use of a variometer due to the fact that detecting thermal currents is not possible with the use of normal human motion sensitivity
Wrong. Awkward structure.

e) that paragliding requires the use of a variometer since detected thermal currents are impossible to handle using normal human motion sensitivity
Wrong.
- Meaning problem. "detecting thermal currents" <-- express an action # "detected thermal currents" <-- express a noun.
- There should be a preposition before "using". "detected thermal currents are impossible to handle by using....."

Hope it helps
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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10 Dec 2013, 13:03
Unlike the birds, bla bla bla, for humans the use of X is essential...............10 seconds.

B

regards
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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23 Jul 2014, 23:37
1
carcass wrote:
Unlike the birds, bla bla bla, for humans the use of X is essential...............10 seconds.

B

regards

Doesn't this logic, as it stands in the option seem to indicate that birds have not found the use of xxxxx essential which basically makes no sense.
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Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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18 Jan 2015, 17:55
The full correct sentence is "Unlike birds, which are highly sensitive to atmospheric pressure, people have found the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity".

I'm a little bit confused. Should not a comma divide 'currents' and 'using'? For me, without comma the sentence sounds like the phrase 'using normal human motion sensitivity' modifies 'thermal currents', as if thermal currents were somehow using normal human motion sensitivity, which is impossible. As far as I know Verb-ing modifier not preceded by comma can modify ONLY preceding noun.
That's why I crossed answer B out.
Could someone clarify?
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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19 Jan 2015, 02:26
vfqrk23 wrote:
The full correct sentence is "Unlike birds, which are highly sensitive to atmospheric pressure, people have found the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity".

I'm a little bit confused. Should not a comma divide 'currents' and 'using'? For me, without comma the sentence sounds like the phrase 'using normal human motion sensitivity' modifies 'thermal currents', as if thermal currents were somehow using normal human motion sensitivity, which is impossible. As far as I know Verb-ing modifier not preceded by comma can modify ONLY preceding noun.
That's why I crossed answer B out.
Could someone clarify?

vfqrk23 - You shouldn't think of the "thermal currents" part of the sentence as a modifier. It's a necessary part of the sentence and thus requires no comma because it's integral to clarifying the meaning of WHAT is used to detect thermal currents (human motion sensitivity) and the quality of that thing (normal, which is why a variometer is crucial).

Remember that it's important to apply these grammatical rules within the context of the meaning of each question/sentence.
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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14 Feb 2015, 01:06
OP, B seems the best answer among the choices, but 'crucial for' is an incorrect idiomatic expression. 'crucial to XYZ' is the correct usage.
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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14 Feb 2015, 01:06
OP, B seems the best answer among the choices, but 'crucial for' is an incorrect idiomatic expression. 'crucial to XYZ' is the correct usage.
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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25 Apr 2015, 03:17
1
a) that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity --------------- requires should be there , not require - hence incorrect

b) the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity ---------- i could eliminate others so this is correct ..

c) that paragliding requires the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity ------detecting thermal currents IS , not are --- incorrect

d) paragliding to require the use of a variometer due to the fact that detecting thermal currents is not possible with the use of normal human motion sensitivity ----- to require ... due to the fact --- awkward and too wordy --- incorrect

e) that paragliding requires the use of a variometer since detected thermal currents are impossible to handle using normal human motion sensitivity ------- detected thermal currents ??? this changes meaning ... we are taking about detecting currents not detected ---- incorrect
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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25 Apr 2015, 11:46
Doesn't the correct answer mean Birds did not find variometer crucial? isn't that nonsensical?
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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25 Apr 2015, 23:13
anilisanil wrote:
Doesn't the correct answer mean Birds did not find variometer crucial? isn't that nonsensical?

Haha, yes the 'correct' answer does seem to set up a comparison that birds have studied out the issue and found the variometer unnecessary due to their natural abilities...

There is value is trying to understand what the sentence is really trying to tell you. Detecting the subtle difference is meaning is important on the GMAT.

KW
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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26 Apr 2015, 03:54
a) that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

b) the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity

c) that paragliding requires the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

d) paragliding to require the use of a variometer due to the fact that detecting thermal currents is not possible with the use of normal human motion sensitivity

e) that paragliding requires the use of a variometer since detected thermal currents are impossible to handle using normal human motion sensitivity
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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27 Apr 2015, 11:03
Though B seems to be the best answer but "since" is mainly used for time. correct me if I am wrong
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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29 Apr 2015, 06:09
1
aks456 wrote:
Though B seems to be the best answer but "since" is mainly used for time. correct me if I am wrong

The primary definition of since is to denote time and that used to be the only acceptable definition on the GMAT. Since has been increasingly used interchangeably with because in spoken English and it appears that the GMAT is accepting that usage as well (although there aren't many good GMAT examples of since used for because).

KW
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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26 Jun 2017, 22:32
i thought the idiom was "found that" where "that" is required. can an expert please confirm this is not the case?
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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09 Jul 2017, 12:26
1
mdacosta wrote:
i thought the idiom was "found that" where "that" is required. can an expert please confirm this is not the case?

I'm not sure that there's a clear rule on this, to be honest. And that's always the problem with idioms -- they are, by definition, pretty arbitrary. (And I generally advocate spending as little energy as possible worrying about idioms, since there are something like 25,000 of them in English, and they aren't always driven by clear rules. Click here for a long rant on this issue.)

Here's the best I can come up with:

• Correct: Found that [clause]. Example: "Mike found that surfing with sharks had been exhilarating until a shark munched his thigh." or "When Mike was surfing in Iceland, he found that the lack of taco stands was irritating."
• Also correct: Found [noun]. Example: "Mike found a shark tooth on the beach." Or "When Mike was surfing in Iceland, he found the lack of taco stands irritating."

So again: I don't think that there's an absolute rule that says that "found that" is better than "found" -- and I also think it's very unlikely that you'll have to deal with exactly this issue on your actual GMAT exam.

I hope this helps!
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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09 Jul 2017, 13:43
nechets wrote:
Unlike birds, which are highly sensitive to atmospheric pressure, people have found that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity.

a) that paragliding require the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

b) the use of a variometer crucial for paragliding since it is impossible to detect thermal currents using normal human motion sensitivity

c) that paragliding requires the use of a variometer since detecting thermal currents are impossible using normal human motion sensitivity

d) paragliding to require the use of a variometer due to the fact that detecting thermal currents is not possible with the use of normal human motion sensitivity

e) that paragliding requires the use of a variometer since detected thermal currents are impossible to handle using normal human motion sensitivity

Is there a modifier issue in official answer? What do you guys think?

Chose B. Will edit and share a brief why once I have a laptop.

Posted from my mobile device
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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03 Feb 2018, 04:28
IN Option B..."It" refers to which antecedent?
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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20 Feb 2018, 02:17
Although B is a preferred option over others, IMO ,the wrong comparison between bird and people is hard to ignore. That makes the sentence pretty illogical.
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Re: Unlike birds, which are highly sensitive to atmospheric pres  [#permalink]

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03 Mar 2019, 02:14
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Re: Unlike birds, which are highly sensitive to atmospheric pres   [#permalink] 03 Mar 2019, 02:14
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