Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 31 Aug 2016, 19:23

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# The importance of the ozone layer to terrestrial animals is

Author Message
TAGS:

### Hide Tags

Intern
Joined: 26 Jan 2010
Posts: 5
Location: India
Concentration: Marketing, Entrepreneurship
GMAT 1: 690 Q47 V36
GPA: 3.07
WE: Engineering (Computer Hardware)
Followers: 1

Kudos [?]: 8 [1] , given: 2

The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

10 May 2011, 11:46
1
KUDOS
2
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

72% (02:21) correct 28% (01:36) wrong based on 535 sessions

### HideShow timer Statistics

The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

A. All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.
B. Few species of animals live on a part of the earth’s surface that is not threatened by holes in the ozone layer.
C. Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight.
D. A single wavelength of sunlight can cause severe damage to the eyes of most species of animals.
E. Some wavelengths of sunlight that cause eye damage are more likely to reach the earth’s surface where there are holes in the ozone layer than where there are not.

Powerscore CR Bible

[Reveal] Spoiler:
C is said to be wrong because "many species" may mean "all species". Please explain.

If I say I have 10 balls and many balls are red. Can't I be sure that some will not be red?
[Reveal] Spoiler: OA
Retired Moderator
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1713
Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Followers: 89

Kudos [?]: 798 [2] , given: 109

Re: Can "many" include "all"? (Source: PowerScore) [#permalink]

### Show Tags

10 May 2011, 14:57
2
KUDOS
+1 E

Yes, "all" MAY include "many".
For example, if you have 100 balls, "many" could be 50 or 100 balls. In both cases, they are a lot! It is an ambiguous term. In this sense, you must be careful of what "many" could mean.

However, I think that " many " is not critical to eliminate C. "Any" is most important in that choice.

I think I deserve kudos
_________________

"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."

My Integrated Reasoning Logbook / Diary: http://gmatclub.com/forum/my-ir-logbook-diary-133264.html

GMAT Club Premium Membership - big benefits and savings

Verbal Forum Moderator
Joined: 23 Jul 2010
Posts: 546
GPA: 3.4
WE: General Management (Non-Profit and Government)
Followers: 103

Kudos [?]: 770 [1] , given: 297

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

08 Nov 2013, 05:40
1
KUDOS
6
This post was
BOOKMARKED
Senior Manager
Joined: 24 Mar 2011
Posts: 457
Location: Texas
Followers: 5

Kudos [?]: 133 [0], given: 20

Re: Can "many" include "all"? (Source: PowerScore) [#permalink]

### Show Tags

10 May 2011, 13:46
I will go with E for this.

Question is asking what of the following is supported by the argument.
3 is - B,C and D are talking out of the way. A is not supporting the argument.
Intern
Joined: 26 Jan 2010
Posts: 5
Location: India
Concentration: Marketing, Entrepreneurship
GMAT 1: 690 Q47 V36
GPA: 3.07
WE: Engineering (Computer Hardware)
Followers: 1

Kudos [?]: 8 [0], given: 2

Re: Can "many" include "all"? (Source: PowerScore) [#permalink]

### Show Tags

10 May 2011, 22:16
metallicafan wrote:
+1 E

Yes, "all" MAY include "many".
For example, if you have 100 balls, "many" could be 50 or 100 balls. In both cases, they are a lot! It is an ambiguous term. In this sense, you must be careful of what "many" could mean.

However, I think that " many " is not critical to eliminate C. "Any" is most important in that choice.

I think I deserve kudos

Thanks a lot. I overlooked the "any"

Kudos to you!
VP
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1353
Followers: 17

Kudos [?]: 218 [0], given: 10

Re: Can "many" include "all"? (Source: PowerScore) [#permalink]

### Show Tags

11 May 2011, 00:20
There is a gap in reasoning of how the lights may effect the eye sight of some species.
Hence a supporter answer choice is needed here which fills the gap.

Paraphrase : how the regions where there are holes are more problematic than regions where there are no holes in Ozone layer ?
Answer to this will suffice the argument.

Between D and E,

E gives a clear answer. Also negating E will make the conclusion falls too.
Hence E is an assumption answer choice too.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Manager
Status: Persevering
Joined: 15 May 2013
Posts: 225
Location: India
GMAT Date: 08-02-2013
GPA: 3.7
WE: Consulting (Consulting)
Followers: 1

Kudos [?]: 81 [0], given: 34

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

10 Nov 2013, 10:10
The key thing here to note is the phrase "severe eye damage"

The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

A. All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.Close but flawed.No one said that other wavelengths cannot cause damage, Its just that they can't cause severe damage.So all the wavelengths need not be filtered out.
B. Few species of animals live on a part of the earth’s surface that is not threatened by holes in the ozone layer.Can't say. Maybe more live maybe not
C. Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight.Is not supported by above statements
D. A single wavelength of sunlight can cause severe damage to the eyes of most species of animals.Not supported
E. Some wavelengths of sunlight that cause eye damage are more likely to reach the earth’s surface where there are holes in the ozone layer than where there are not.
True, ozone filters some of the wavelengths, so the rays are more likely to reach the surface of earth where there are holes in the surface of earth.
_________________

--It's one thing to get defeated, but another to accept it.

Senior Manager
Joined: 08 Apr 2012
Posts: 464
Followers: 1

Kudos [?]: 41 [0], given: 58

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

11 Nov 2013, 06:52
ramannanda9 wrote:
The key thing here to note is the phrase "severe eye damage"

The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

A. All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.Close but flawed.No one said that other wavelengths cannot cause damage, Its just that they can't cause severe damage.So all the wavelengths need not be filtered out.
B. Few species of animals live on a part of the earth’s surface that is not threatened by holes in the ozone layer.Can't say. Maybe more live maybe not
C. Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight.Is not supported by above statements
D. A single wavelength of sunlight can cause severe damage to the eyes of most species of animals.Not supported
E. Some wavelengths of sunlight that cause eye damage are more likely to reach the earth’s surface where there are holes in the ozone layer than where there are not.
True, ozone filters some of the wavelengths, so the rays are more likely to reach the surface of earth where there are holes in the surface of earth.

We have this in the stem:
" However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species."

Why can't we infer from this that C is the right answer?
Clearly we are told that there will be damage to MOST species.
This means that SOME will not be hurt....
?
Manager
Status: Persevering
Joined: 15 May 2013
Posts: 225
Location: India
GMAT Date: 08-02-2013
GPA: 3.7
WE: Consulting (Consulting)
Followers: 1

Kudos [?]: 81 [0], given: 34

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

16 Nov 2013, 06:12
ronr34 wrote:
ramannanda9 wrote:
The key thing here to note is the phrase "severe eye damage"

The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

A. All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.Close but flawed.No one said that other wavelengths cannot cause damage, Its just that they can't cause severe damage.So all the wavelengths need not be filtered out.
B. Few species of animals live on a part of the earth’s surface that is not threatened by holes in the ozone layer.Can't say. Maybe more live maybe not
C. Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight.Is not supported by above statements
D. A single wavelength of sunlight can cause severe damage to the eyes of most species of animals.Not supported
E. Some wavelengths of sunlight that cause eye damage are more likely to reach the earth’s surface where there are holes in the ozone layer than where there are not.
True, ozone filters some of the wavelengths, so the rays are more likely to reach the surface of earth where there are holes in the surface of earth.

We have this in the stem:
" However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species."

Why can't we infer from this that C is the right answer?
Clearly we are told that there will be damage to MOST species.
This means that SOME will not be hurt....
?

Precisely because the argument says severe damage and the option C says no damage. But there can be minor damage even of there is no severe damage.

Hope it is clear.
_________________

--It's one thing to get defeated, but another to accept it.

Intern
Joined: 23 Dec 2014
Posts: 23
Followers: 0

Kudos [?]: 2 [0], given: 5

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

02 Mar 2015, 19:20
Easy, the answer is a, as here we have the favt that some wavelenght can cause damage.
Manager
Joined: 25 Mar 2014
Posts: 167
Location: India
Concentration: Operations, Finance
GMAT Date: 05-10-2015
GPA: 3.51
WE: Programming (Computer Software)
Followers: 0

Kudos [?]: 37 [0], given: 48

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

11 Mar 2015, 09:55
This argument is one of those in which we need to take care of the words such as many, some, all etc. All the options can be rejected if we take care of these quantity words but option E.
It is mentioned in the argument that the holes cause the effect, so it can be inferred that where there is no hole effect will not be there.
_________________

Please give Kudos to the post if you liked.

GMAT Club Legend
Joined: 01 Oct 2013
Posts: 9331
Followers: 808

Kudos [?]: 165 [0], given: 0

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

12 Mar 2016, 01:17
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Intern
Joined: 18 Nov 2015
Posts: 7
Followers: 0

Kudos [?]: 0 [0], given: 10

Re: The importance of the ozone layer to terrestrial animals is [#permalink]

### Show Tags

08 Apr 2016, 22:46

A. All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.

Insufficient information. Might be true, but we are not sure.

B. Few species of animals live on a part of the earth’s surface that is not threatened by holes in the ozone layer.

Again, we dont have much information to support above. Might be true.

C. Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight.

Again, we dont have much information to support above. Might be true.

D. A single wavelength of sunlight can cause severe damage to the eyes of most species of animals.

MOST of the species, we dont know the % of species of animals whose eyes could be damaged. Moreover SINGLE is too extreme, probably there are more than one wavelength.

E. Some wavelengths of sunlight that cause eye damage are more likely to reach the earth’s surface where there are holes in the ozone layer than where there are not.

Re: The importance of the ozone layer to terrestrial animals is   [#permalink] 08 Apr 2016, 22:46
Similar topics Replies Last post
Similar
Topics:
3 The ozone layer that protects life on Earth 1 12 Dec 2014, 07:08
27 The popular view is that Ozone layer’s depletion-"Tough one" 46 03 Feb 2013, 21:18
5 Ozone layer - Debatable OA 8 30 Dec 2010, 00:39
3 The importance of the ozone layer to terrestrial animals is 11 08 Nov 2009, 21:46
The importance of the ozone layer to terrestrial animals is 4 02 Jul 2007, 04:20
Display posts from previous: Sort by