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

It is currently 19 Feb 2019, 13:32

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT Prep Hour

     February 20, 2019

     February 20, 2019

     08:00 PM EST

     09:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. Wednesday, February 20th at 8 PM EST
  • Online GMAT boot camp for FREE

     February 21, 2019

     February 21, 2019

     10:00 PM PST

     11:00 PM PST

    Kick off your 2019 GMAT prep with a free 7-day boot camp that includes free online lessons, webinars, and a full GMAT course access. Limited for the first 99 registrants! Feb. 21st until the 27th.

Ozone reaches high concentrations twelve miles above Earth, where it

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Manager
Manager
avatar
Joined: 18 Dec 2011
Posts: 63
Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 26 Dec 2011, 12:58
12
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

45% (01:14) correct 55% (01:16) wrong based on 254 sessions

HideShow timer Statistics

Ozone reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.


(A) has long appeared that it was immune from

(B) has long appeared to have been immune from

(C) has long appeared as being immune to

(D) had long appeared immune to

(E) had long appeared that it was immune to
Manager
Manager
avatar
Joined: 13 Aug 2010
Posts: 150
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 27 Dec 2011, 00:02
1
'had long appeared' -- longer applied
immune to -- correct usage.
Manager
Manager
avatar
Joined: 18 Dec 2011
Posts: 63
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 07 Jan 2012, 16:00
I though the correct sentence should have started with has, but they have the wrong idiom usage, is my explanation correct:

A) has long appeared that it was [b]immune from [/b]
B) has long appeared to have been immune from
C) has long appeared as being immune to (Correct idiom, but uses being)
D) had long appeared immune to (Correct idiom)
E) had long appeared that it was immune to (Correct Idiom, to long, and unnecessary use of it)
Manager
Manager
avatar
B
Joined: 25 Jan 2016
Posts: 54
Location: India
Concentration: General Management, Statistics
GMAT 1: 670 Q49 V31
GMAT 2: 730 Q49 V41
GPA: 3
WE: Information Technology (Computer Software)
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 31 Aug 2017, 01:38
IMO D is correct here, since it was previously assumed that Ozone is immune at that level. But later it has been known that CFC from industrial emissions can deplete Ozone at that level, so we are in the past of past hence use "had", also immune to is the correct idiom.
Manager
Manager
User avatar
B
Joined: 25 Nov 2017
Posts: 89
Location: India
GMAT 1: 590 Q47 V25
GMAT 2: 660 Q50 V29
GPA: 3.56
CAT Tests
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 22 Oct 2018, 08:33
Ozone reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.
A) has long appeared that it was immune from
B) has long appeared to have been immune from
C) has long appeared as being immune to (Correct idiom)
D) had long appeared immune to
E) had long appeared that it was immune to


Immune to is the idiom. A,B out.
Being : C out.
E is verbose
So D is correct.
But use of had appeared, is this right ? Can't see any two events in past ?
IMO: where it long appeared immune to is better

Hi, GMATNinjaTwo,
Plz help.
Orion Representative
User avatar
S
Joined: 26 Jul 2010
Posts: 353
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 22 Oct 2018, 09:25
1
Top Contributor
I'd *heavily* recommend treating this as a Tense/Timeline problem and not an idiom problem. If 100 people see this thread, I'd bet that fewer than 2 ever see "immune to vs. immune from" on an official GMAT, but I'd say 80+ of you will have a decision similar to the verb tense issue here.

Note that after the semicolon you have "we have now realized, though, that..." This means that 1) something has changed (there's a transition here), so 2) the verb tense for what was once thought to be true shouldn't be the same as the verb tense for what has changed. That present perfect "has long appeared" suggests that that appearance is still going on...but immediately past the semicolon we get evidence that that appearance of immunity is over, so we need a verb tense for "long appeared" that shows that the action is over. Only (D) and (E) do that.

Why I'm pretty adamant about seeing this as a tense problem is that it's repeatable...everyone will see verb tense tested on the official GMAT, so the more you've trained yourself to look for signals of timeline (e.g. "hey there's clear evidence that we no longer think this way, so we have to show that "has appeared" is over") the more you're preparing for whichever Tense/Timeline problems the GMAT happens to throw at you that day. Verb tense decision-making is repeatable, whereas if you walk away from this one thinking "immune to > immune from" that's not bad knowledge to have in general, but there's just such a limited probability that you'll get to use it on test day.

And then BARUAH "we have now realized" does put that act of realizing in the past and suggest that anything that happened prior to that realization is further in the past, justifying the past perfect there. Like you I'd probably prefer "it long appeared immune" but since they didn't give us that choice we have to make the best of what we've got and at least "had appeared" clearly puts that appearance in the past before "we have now realized."
_________________

Brian

Curriculum Developer, Instructor, and Host of Veritas Prep On Demand

Save $100 on live Veritas Prep GMAT Courses and Admissions Consulting

Enroll now. Pay later. Take advantage of Veritas Prep's flexible payment plan options.

Veritas Prep Reviews

Manager
Manager
User avatar
B
Joined: 25 Nov 2017
Posts: 89
Location: India
GMAT 1: 590 Q47 V25
GMAT 2: 660 Q50 V29
GPA: 3.56
CAT Tests
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 22 Oct 2018, 09:37
VeritasPrepBrian wrote:
I'd *heavily* recommend treating this as a Tense/Timeline problem and not an idiom problem. If 100 people see this thread, I'd bet that fewer than 2 ever see "immune to vs. immune from" on an official GMAT, but I'd say 80+ of you will have a decision similar to the verb tense issue here.

Note that after the semicolon you have "we have now realized, though, that..." This means that 1) something has changed (there's a transition here), so 2) the verb tense for what was once thought to be true shouldn't be the same as the verb tense for what has changed. That present perfect "has long appeared" suggests that that appearance is still going on...but immediately past the semicolon we get evidence that that appearance of immunity is over, so we need a verb tense for "long appeared" that shows that the action is over. Only (D) and (E) do that.

Why I'm pretty adamant about seeing this as a tense problem is that it's repeatable...everyone will see verb tense tested on the official GMAT, so the more you've trained yourself to look for signals of timeline (e.g. "hey there's clear evidence that we no longer think this way, so we have to show that "has appeared" is over") the more you're preparing for whichever Tense/Timeline problems the GMAT happens to throw at you that day. Verb tense decision-making is repeatable, whereas if you walk away from this one thinking "immune to > immune from" that's not bad knowledge to have in general, but there's just such a limited probability that you'll get to use it on test day.

And then BARUAH "we have now realized" does put that act of realizing in the past and suggest that anything that happened prior to that realization is further in the past, justifying the past perfect there. Like you I'd probably prefer "it long appeared immune" but since they didn't give us that choice we have to make the best of what we've got and at least "had appeared" clearly puts that appearance in the past before "we have now realized."


Thanks Brian. I understand that it is better to treat this kind of problems as Timeline/Tense problems.
Intern
Intern
avatar
B
Joined: 25 Jul 2018
Posts: 15
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 22 Oct 2018, 13:23
VeritasPrepBrian wrote:
I'd *heavily* recommend treating this as a Tense/Timeline problem and not an idiom problem. If 100 people see this thread, I'd bet that fewer than 2 ever see "immune to vs. immune from" on an official GMAT, but I'd say 80+ of you will have a decision similar to the verb tense issue here.

Note that after the semicolon you have "we have now realized, though, that..." This means that 1) something has changed (there's a transition here), so 2) the verb tense for what was once thought to be true shouldn't be the same as the verb tense for what has changed. That present perfect "has long appeared" suggests that that appearance is still going on...but immediately past the semicolon we get evidence that that appearance of immunity is over, so we need a verb tense for "long appeared" that shows that the action is over. Only (D) and (E) do that.

Why I'm pretty adamant about seeing this as a tense problem is that it's repeatable...everyone will see verb tense tested on the official GMAT, so the more you've trained yourself to look for signals of timeline (e.g. "hey there's clear evidence that we no longer think this way, so we have to show that "has appeared" is over") the more you're preparing for whichever Tense/Timeline problems the GMAT happens to throw at you that day. Verb tense decision-making is repeatable, whereas if you walk away from this one thinking "immune to > immune from" that's not bad knowledge to have in general, but there's just such a limited probability that you'll get to use it on test day.

And then BARUAH "we have now realized" does put that act of realizing in the past and suggest that anything that happened prior to that realization is further in the past, justifying the past perfect there. Like you I'd probably prefer "it long appeared immune" but since they didn't give us that choice we have to make the best of what we've got and at least "had appeared" clearly puts that appearance in the past before "we have now realized."


This was very insightful.

Your recommendation to see this kind of problem as a timeline one is very much valid. I didnt even take particular notice of the immune idiom usage, like you guessed. I definitely will take this to heart
GMAT Club Bot
Re: Ozone reaches high concentrations twelve miles above Earth, where it   [#permalink] 22 Oct 2018, 13:23
Display posts from previous: Sort by

Ozone reaches high concentrations twelve miles above Earth, where it

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.