Amphibian populations are declining in numbers worldwide. : GMAT Critical Reasoning (CR)
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 10 Dec 2016, 09:40

### 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

# Amphibian populations are declining in numbers worldwide.

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

### Hide Tags

Senior Manager
Joined: 04 Sep 2008
Posts: 259
Location: Kolkata
Schools: La Martiniere for Boys
Followers: 2

Kudos [?]: 90 [0], given: 9

Amphibian populations are declining in numbers worldwide. [#permalink]

### Show Tags

03 Oct 2008, 04:38
1
This post was
BOOKMARKED
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

Amphibian populations are declining in numbers
worldwide. Not coincidentally, the earth’s ozone
layer has been continuously depleted throughout the
last 50 years. Atmospheric ozone blocks UV-B, a
type of ultraviolet radiation that is continuously
produced by the sun, and which can damage genes.
Because amphibians lack hair, hide, or feathers to
shield them, they are particularly vulnerable to UV-B
radiation. In addition, their gelatinous eggs lack the
protection of leathery or hard shells. Thus, the
primary cause of the declining amphibian population
is the depletion of the ozone layer.
Each of the following, if true, would strengthen the
argument EXCEPT:
(A) Of the various types of radiation blocked by
atmospheric ozone, UV-B is the only type
that can damage genes.
(B) Amphibian populations are declining far more
rapidly than are the populations of
nonamphibian species whose tissues and
eggs have more natural protection from
UV-B.
(C) Atmospheric ozone has been significantly
depleted above all the areas of the world in
which amphibian populations are declining.
(D) The natural habitat of amphibians has not
become smaller over the past century.
(E) Amphibian populations have declined
continuously for the last 50 years.

_________________

Thanks
rampuria

If you have any questions
you can ask an expert
New!
Manager
Joined: 25 May 2008
Posts: 196
Followers: 1

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

Re: Tough CR [#permalink]

### Show Tags

03 Oct 2008, 05:09
I think is D, becuase in D the author speaks about the natural habitat, not about amfibians.
Director
Joined: 20 Sep 2006
Posts: 658
Followers: 2

Kudos [?]: 110 [0], given: 7

Re: Tough CR [#permalink]

### Show Tags

03 Oct 2008, 05:38
D
Manager
Joined: 09 Jan 2010
Posts: 128
Followers: 1

Kudos [?]: 27 [0], given: 12

Re: Tough CR [#permalink]

### Show Tags

02 Feb 2010, 13:52
vote for D
Re: Tough CR   [#permalink] 02 Feb 2010, 13:52
Similar topics Replies Last post
Similar
Topics:
Parland’s alligator population has been declining 1 25 Mar 2016, 11:17
47 When a city experiences a sharp decline in population, the 23 12 Nov 2012, 23:29
21 Amphibian populations are declining in numbers worldwide. 19 13 Feb 2011, 14:48
56 Parland s alligator population has been declining in recent 11 02 Dec 2009, 06:28
Amphibian population 6 03 Jun 2009, 06:50
Display posts from previous: Sort by

# Amphibian populations are declining in numbers worldwide.

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

 Powered by phpBB © phpBB Group and phpBB SEO 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®.