Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

It is currently 20 Jul 2019, 00:37

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

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

Find Similar Topics 
Manager
Manager
avatar
Joined: 18 Dec 2011
Posts: 54
Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 26 Dec 2011, 13:58
1
12
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

47% (01:12) correct 53% (01:18) wrong based on 279 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: 138
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 27 Dec 2011, 01:02
1
'had long appeared' -- longer applied
immune to -- correct usage.
Manager
Manager
User avatar
Joined: 22 Feb 2009
Posts: 158
GMAT ToolKit User
Ozone reaches high concentrations twelve miles above Earth  [#permalink]

Show Tags

New post 03 Aug 2014, 01:15
2
Gnpth wrote:
NEW PROJECT!: Renew Old Thread => Back to basic => Give your explanation- Get Kudos Point


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


Go for D." Immune to" is the correct idiom. Left with C,D and E. The correct tense is past perfect. Eliminate C. E is redundant. So D is the correct answer.
Note: If you are "immune to" something, it doesn't bother you.
If you are "immune from" something, it cannot be applied to you.
_________________
.........................................................................
+1 Kudos please, if you like my post
Manager
Manager
avatar
Joined: 27 Jul 2012
Posts: 98
Re: Ozone reaches high concentrations twelve miles above Earth  [#permalink]

Show Tags

New post 03 Aug 2014, 09:43
1
I don't know about the idiom part. my approach was based on meaning:
the verb tense is wrong. we need one type of past tense; so A, B, and C out.
between D and E: E is wordy (when the subject of the two sentence is the same, it is wordy to say"it had long appeared that it was immune to " just it had long appeared immune to" is enough)
So D wins.
Manager
Manager
avatar
B
Joined: 26 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, 02:38
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.
Veritas Prep Representative
User avatar
S
Joined: 26 Jul 2010
Posts: 414
Re: Ozone reaches high concentrations twelve miles above Earth, where it  [#permalink]

Show Tags

New post 22 Oct 2018, 10:25
1
Top Contributor
1
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
GMAT Club Bot
Re: Ozone reaches high concentrations twelve miles above Earth, where it   [#permalink] 22 Oct 2018, 10:25
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  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne