GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 22 Jul 2018, 09:51

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# QOTD: Geologists believe that the warning signs

Author Message
TAGS:

### Hide Tags

MBA Section Director
Joined: 19 Mar 2012
Posts: 5135
Location: India
GMAT 1: 760 Q50 V42
GPA: 3.8
WE: Marketing (Non-Profit and Government)
QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 06:32
2
12
00:00

Difficulty:

35% (medium)

Question Stats:

68% (00:59) correct 32% (01:09) wrong based on 606 sessions

### HideShow timer Statistics

Verbal Question of The Day: Day 145: Sentence Correction

Subscribe to GMAT Question of the Day: E-mail | RSS

Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.

_________________
GMAT Club Verbal Expert
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 1847
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 06:33
4
2
This is a gnarly question that operates at the intersection of parallelism and meaning. The basics of parallelism aren’t all that hard, but then the GMAT turns them into a goofy logic puzzle. More on that in our webinar on parallelism and meaning if you haven’t already seen it.

Quote:
(A) changing the measured strain across a fault zone, and varying

Superficially, the parallelism doesn’t look awful here, but it’s not quite right. The sentence revolves around a list of “warning signs for a major earthquake”, and the non-underlined portion features the first two items in the list (“sudden fluctuations” and “tilting and other deformations”), both of which are nouns.

So we need those last two items in the list to be nouns that are logically parallel to “sudden fluctuations” and “tilting and other deformations.” But I don’t think we actually have nouns in the underlined portion: “changing” and “varying” seem to be structured as modifiers, not nouns.

To be fair, this is tricky as hell: as discussed in our article on “-ing” words, “-ing” words could be modifiers or nouns (also known as gerunds), depending on how they’re used. In this particular case, there’s no clear indication that “changing” and “varying” are nouns. If (A) said “the changing of measured strain” and “the varying of electrical properties”, then you could convince me that these are parallel nouns.

Another way of thinking about this: what, exactly, are the signs of major earthquakes? Is it “changing the measured strain across the fault zone”? That doesn’t really make sense: the phrase suggests that the act of changing the measurement is the “sign of a major earthquake.” In reality, the sign of the earthquake is changes in the strain – not changes to the measurement itself.

So whether you’re thinking about meaning or structure, (A) is wrong. If you wanted to be conservative on your first pass through (never a bad idea!), you could keep (A), but there are better options available.

Quote:
(B) changing measurements of the strain across a fault zone, and varying

(B) is a slightly better version of (A), but it still isn’t quite good enough. Sure, “changing measurements” is clearly a noun now, with “changing” serving as an adjective. But it still incorrectly implies that the measurements are changing, and not the strain itself. And “varying” still looks like a modifier.

So (B) is out.

Quote:
(C) changing the strain as measured across a fault zone, and variations of

(C) is more tempting than (A) or (B), but it’s still not quite right. “Changing the strain” still has the same problem we described in (A): “changing” isn’t necessarily a noun here, and the act of “changing the strain” really isn’t a sign of a major earthquake – it’s much clearer to say that “changes in the strain” are a sign of an earthquake.

So we can probably do better than (C), too.

Quote:
(D) changes in the measured strain across a fault zone, and variations in

Here we go! Now the list consists only of nice, straightforward, unambiguous nouns: “warning signs for a major earthquake include… changes in the measured strain… and variations in the electrical properties of rocks.” Those are nouns, without any doubt.

And just as importantly, they make perfect sense as warning signs for an earthquake. Let’s keep (D).

Quote:
(E) changes in measurements of the strain across a fault zone, and variations among

The differences between (D) and (E) are pretty subtle. (E) gives us a pair of nouns, so it’s structurally parallel – but the meaning doesn’t work anymore. “…changes in measurements of the strain” are NOT signs of an earthquake: if the measurement changes, that doesn’t necessarily mean that the strain itself has changed. For that reason alone, we could ditch (E).

Plus, the phrase “variations among” doesn’t quite work. If we talk about “variations among curry recipes”, we’re saying that different recipes have different characteristics. So “variations among electrical properties of rocks” would suggest that the different electric properties of rocks are… well, different from each other. But that isn’t what we’re trying to say: the point of the sentence is that the electrical properties of individual rocks vary before a major earthquake. So “variations in” is much, much clearer.

Ugh. Having fun yet? (E) is out, and (D) wins.
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | GMAT blog | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja and @GMATNinjaTwo in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for \$29.99 | Time management on verbal

##### General Discussion
Manager
Status: Aiming MBA!!
Joined: 19 Aug 2017
Posts: 140
Location: India
GMAT 1: 620 Q49 V25
GPA: 3.75
WE: Web Development (Consulting)
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 07:09
1
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

Understanding the intended meaning : After reading the sentence its clear that the sentence is talking about the list of warning signs for a major earthquake as believed by the geologists.

At first look, though, I even had a thought whether "tilting" is acting like a VERB-ing modifier and the remaining two -ing forms (changing and varying) are parallel to the tilting. So, I quickly checked the same. The VERB-ing modifiers should make sense with the SUBJECT and VERB of the preceding clause. Here, preceding clause is an essential modifier.

Preceding Clause -- the warning signs for a major earthquake (SUBJECT) may include (VERB) sudden fluctuations in local seismic activity, tilting...
This is for certain that just enumerating signs of something cannot lead to tilting in anything. Though Tilting can be included as a part of this list. Hence, most definitely comma + tilting is NOT meant to be a modifier in this sentence. Then what is this "tilting"?? It is acting as an ACTION NOUN or more technically, Complex Gerund. SO, from here we got that the remaining portions of the underlined part should also be nouns for the list to be parallel. So, need to quickly go through the choices to look for parallelism.

(A) changing the measured strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(B) changing measurements of the strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. Also, there is a meaning issue with this choice. Changing measurements of the strain is not correct. Changing the measured strain is the intended meaning. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(C) changing the strain as measured across a fault zone, and variations of
changes is better than changing. Also, when a noun form is available, we prefer not to use the "-ING" form of verbs. Variations of is non idiomatic. Therefore, incorrect.

(D) changes in the measured strain across a fault zone, and variations in
CHANGES is a proper noun form, compared to CHANGING. Also, the intended meaning -- changes in the strain is clear. Usage of "Variations in" is idiomatic. Correct.

(E) changes in measurements of the strain across a fault zone, and variations among
Similar issue in meaning as choice B. Also, variations among is NOT idiomatic. Incorrect.
BSchool Forum Moderator
Joined: 28 Mar 2017
Posts: 1052
Location: India
Concentration: Finance, Technology
GMAT 1: 730 Q49 V41
GPA: 4
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 07:36
1
souvik101990 wrote:
Q for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Hi souvik101990

Isn't the question incomplete? "Q" isn't making any sense.

Regards
_________________

Kudos if my post helps!

Long And A Fruitful Journey - V21 to V41; If I can, So Can You!!

Preparing for RC my way

My study resources:
1. Useful Formulae, Concepts and Tricks-Quant
2. e-GMAT's ALL SC Compilation
3. LSAT RC compilation
4. Actual LSAT CR collection by Broal
5. QOTD RC (Carcass)
6. Challange OG RC
7. GMAT Prep Challenge RC

Manager
Status: Aiming MBA!!
Joined: 19 Aug 2017
Posts: 140
Location: India
GMAT 1: 620 Q49 V25
GPA: 3.75
WE: Web Development (Consulting)
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 07:46
gmatexam439 wrote:
souvik101990 wrote:
Q for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Hi souvik101990

Isn't the question incomplete? "Q" isn't making any sense.

Regards

Hi gmatexam439,

This is the question stem that I got in the mail for QOTD. You can use the same for answering and yes, the question typed above is missing "Geologists believe that the warning signs" part in the beginning.

Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

souvik101990, can you please add this part in the beginning for more clarity.

Thanks.
-Varun
BSchool Forum Moderator
Joined: 28 Mar 2017
Posts: 1052
Location: India
Concentration: Finance, Technology
GMAT 1: 730 Q49 V41
GPA: 4
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 08:28
e-GMAT Representative
Joined: 02 Nov 2011
Posts: 2556
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 09:40
aceGMAT21 wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

Understanding the intended meaning : After reading the sentence its clear that the sentence is talking about the list of warning signs for a major earthquake as believed by the geologists.

At first look, though, I even had a thought whether "tilting" is acting like a VERB-ing modifier and the remaining two -ing forms (changing and varying) are parallel to the tilting. So, I quickly checked the same. The VERB-ing modifiers should make sense with the SUBJECT and VERB of the preceding clause. Here, preceding clause is an essential modifier.

Preceding Clause -- the warning signs for a major earthquake (SUBJECT) may include (VERB) sudden fluctuations in local seismic activity, tilting...
This is for certain that just enumerating signs of something cannot lead to tilting in anything. Though Tilting can be included as a part of this list. Hence, most definitely comma + tilting is NOT meant to be a modifier in this sentence. Then what is this "tilting"?? It is acting as an ACTION NOUN or more technically, Complex Gerund. SO, from here we got that the remaining portions of the underlined part should also be nouns for the list to be parallel. So, need to quickly go through the choices to look for parallelism.

(A) changing the measured strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(B) changing measurements of the strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. Also, there is a meaning issue with this choice. Changing measurements of the strain is not correct. Changing the measured strain is the intended meaning. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(C) changing the strain as measured across a fault zone, and variations of
changes is better than changing. Also, when a noun form is available, we prefer not to use the "-ING" form of verbs. Variations of is non idiomatic. Therefore, incorrect.

(D) changes in the measured strain across a fault zone, and variations in
CHANGES is a proper noun form, compared to CHANGING. Also, the intended meaning -- changes in the strain is clear. Usage of "Variations in" is idiomatic. Correct.

(E) changes in measurements of the strain across a fault zone, and variations among
Similar issue in meaning as choice B. Also, variations among is NOT idiomatic. Incorrect.

Hello aceGMAT21,

Your meaning-based approach to solve this official question is very thorough. Great job there. Keep it up.

It is true that one mat think that comma + tilting might have been used a comma + verb-ing modifier in this official sentence. However, if just pay attention to the structure of this part of the sentence, we will know that tilting is a noun.

The word tilting in the non-underlined portion is followed and. Presence of and suggests that there is a list in here. What follows and, i.e., the last entity in the list is other deformations, a noun entity. Hence, titling has to be a noun to form a parallel list with other deformations.

Hope this helps.
Thanks.
_________________

| '4 out of Top 5' Instructors on gmatclub | 70 point improvement guarantee | www.e-gmat.com

Manager
Status: Aiming MBA!!
Joined: 19 Aug 2017
Posts: 140
Location: India
GMAT 1: 620 Q49 V25
GPA: 3.75
WE: Web Development (Consulting)
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 10:07
egmat wrote:
aceGMAT21 wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

Understanding the intended meaning : After reading the sentence its clear that the sentence is talking about the list of warning signs for a major earthquake as believed by the geologists.

At first look, though, I even had a thought whether "tilting" is acting like a VERB-ing modifier and the remaining two -ing forms (changing and varying) are parallel to the tilting. So, I quickly checked the same. The VERB-ing modifiers should make sense with the SUBJECT and VERB of the preceding clause. Here, preceding clause is an essential modifier.

Preceding Clause -- the warning signs for a major earthquake (SUBJECT) may include (VERB) sudden fluctuations in local seismic activity, tilting...
This is for certain that just enumerating signs of something cannot lead to tilting in anything. Though Tilting can be included as a part of this list. Hence, most definitely comma + tilting is NOT meant to be a modifier in this sentence. Then what is this "tilting"?? It is acting as an ACTION NOUN or more technically, Complex Gerund. SO, from here we got that the remaining portions of the underlined part should also be nouns for the list to be parallel. So, need to quickly go through the choices to look for parallelism.

(A) changing the measured strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(B) changing measurements of the strain across a fault zone, and varying
varying is NOT the noun form. Therefore, it breaks parallelism. Also, there is a meaning issue with this choice. Changing measurements of the strain is not correct. Changing the measured strain is the intended meaning. ALso, usage of "changes" is better than "changing". When a noun form is available, we prefer not to use the "-ING" form of verbs. Incorrect.

(C) changing the strain as measured across a fault zone, and variations of
changes is better than changing. Also, when a noun form is available, we prefer not to use the "-ING" form of verbs. Variations of is non idiomatic. Therefore, incorrect.

(D) changes in the measured strain across a fault zone, and variations in
CHANGES is a proper noun form, compared to CHANGING. Also, the intended meaning -- changes in the strain is clear. Usage of "Variations in" is idiomatic. Correct.

(E) changes in measurements of the strain across a fault zone, and variations among
Similar issue in meaning as choice B. Also, variations among is NOT idiomatic. Incorrect.

Hello aceGMAT21,

Your meaning-based approach to solve this official question is very thorough. Great job there. Keep it up.

It is true that one mat think that comma + tilting might have been used a comma + verb-ing modifier in this official sentence. However, if just pay attention to the structure of this part of the sentence, we will know that tilting is a noun.

The word tilting in the non-underlined portion is followed and. Presence of and suggests that there is a list in here. What follows and, i.e., the last entity in the list is other deformations, a noun entity. Hence, titling has to be a noun to form a parallel list with other deformations.

Hope this helps.
Thanks.

Thanks egmat! I really missed that part!
Retired Moderator
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 4471
Location: India
WE: Education (Education)
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 12:08
Top Contributor
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

A) changing the measured strain across a fault zone and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Notwithstanding what has been given in the non-underlined part, structurally speaking, the ", changing" in A, B and C absurdly imply that the subject of the previous clause namely 'the signs' is the doer of the said actions. Therefore neck them out in one go.
Then it does not take much to dump for the unidiomatic 'variations among'. In addition, choice E changes the intent to say that the measurements have changed rather than the original measured strains.
A nice meaning based question although structure and parallelism play a major role in diagnosing incorrect choices.
_________________

you can know a lot about something and not really understand it."-- a quote
No one knows this better than a GMAT student does.
Narendran +9198845 44509

GMAT Club Verbal Expert
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 1847
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

30 Oct 2017, 15:27
aceGMAT21 wrote:
gmatexam439 wrote:

Hi souvik101990

Isn't the question incomplete? "Q" isn't making any sense.

Regards

Hi gmatexam439,

This is the question stem that I got in the mail for QOTD. You can use the same for answering and yes, the question typed above is missing "Geologists believe that the warning signs" part in the beginning.

Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

souvik101990, can you please add this part in the beginning for more clarity.

Thanks.
-Varun

Fixed! Thank you for noticing the omission!
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | GMAT blog | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja and @GMATNinjaTwo in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for \$29.99 | Time management on verbal

Intern
Joined: 14 Feb 2017
Posts: 28
Location: Australia
Concentration: Technology, Strategy
GPA: 2.61
WE: Management Consulting (Consulting)
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

15 Nov 2017, 00:35
souvik101990 wrote:

Verbal Question of The Day: Day 145: Sentence Correction

Subscribe to GMAT Question of the Day: E-mail | RSS

Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.

(A) changing the measured strain across a fault zone, and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.

This one got me because I stupidly didn't read E completely and didn't see "among", which renders E incorrect as it is not parallel.

My approach:
5 second scan - reveals split between Changing and changes - confirm parallelism form with non-highlighted portion.
What do we have? fluctuations - tilting (you cant say 'tilts' or anything else so this is still parallel)- changing (is it still changing?)
Adverbial -ing modifier "changing" here is saying that the warning signs are changing. In addition, this -ing modifier is not parallel to the elements in the list. Reduce to changes and eliminate A,B and C.

D and E
D: "changes in X...variations in Y" = parallel form
E: "changes in X" is not parallel with "variations among"
Intern
Joined: 01 Aug 2016
Posts: 1
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

18 Jan 2018, 03:46
Here's what really frustrates me about this question, and something I'd really appreciate if someone could explain.

My understanding of parallelism is that

Complex gerunds can be parallel to action nouns, and simple gerunds cannot be parallel to complex nouns.

Complex nouns are formed by adding an article before the -ing form of the verb.

If my understanding is true then this question is flawed as "tilting" should be "the tilting".

If anyone has a legitimate explanation for this I'd really appreciate it. Otherwise I'm calling BS on the GMAT on this one!
Intern
Joined: 24 Feb 2018
Posts: 23
Re: QOTD: Geologists believe that the warning signs  [#permalink]

### Show Tags

13 Mar 2018, 20:41
fibberachi wrote:
Here's what really frustrates me about this question, and something I'd really appreciate if someone could explain.

My understanding of parallelism is that

Complex gerunds can be parallel to action nouns, and simple gerunds cannot be parallel to complex nouns.

Complex nouns are formed by adding an article before the -ing form of the verb.

If my understanding is true then this question is flawed as "tilting" should be "the tilting".

If anyone has a legitimate explanation for this I'd really appreciate it. Otherwise I'm calling BS on the GMAT on this one!

tilting and other deformations of the Earth's crust. even though the "the" is missing, this can be a complex gerund phrase.

This question reminds me of Manhattan SC book Chapter 11.
It emphasizes that "Simple gerund phrases are never parallel to complex gerund phrases. & Only complex ones can be parallel to action nouns. Great question.
Re: QOTD: Geologists believe that the warning signs &nbs [#permalink] 13 Mar 2018, 20:41
Display posts from previous: Sort by

# Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.