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

It is currently 14 Sep 2014, 18:26

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

depleted throughout the last 50 years. Atmospheric ozone

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 30 Mar 2007
Posts: 183
Followers: 1

Kudos [?]: 4 [0], given: 0

depleted throughout the last 50 years. Atmospheric ozone [#permalink] New post 03 Jun 2007, 15:52
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

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

OA is A...but wouldn't D be correct? if the habitate has been maintained over the years, then it goes against the argument in the passage that the population is declining.
Senior Manager
Senior Manager
User avatar
Joined: 04 Nov 2006
Posts: 267
Location: California
Followers: 1

Kudos [?]: 18 [0], given: 0

GMAT Tests User
 [#permalink] New post 03 Jun 2007, 18:39
A is correct as it talks about Genes affected by UV-B, which is not a problem to amphibians as per the passage..

D however suggests if the habitat is not reduced, clearly the UV-B should be responsible for the reduction in the number of amphibians...
  [#permalink] 03 Jun 2007, 18:39
    Similar topics Author Replies Last post
Similar
Topics:
If industrial pollution continues to deplete the ozone gmacvik 5 14 Jan 2006, 19:45
If industrial pollution continues to deplete the ozone rahulraao 8 04 Oct 2005, 17:15
If industrial pollution continues to deplete the ozone perezhan 1 07 Jul 2005, 19:02
If industrial pollution continues to deplete the ozone Fuqua 1 12 Jun 2005, 08:39
If the depletion of the ozone in the upper portion of the qhoc0010 12 16 Jan 2005, 05:02
Display posts from previous: Sort by

depleted throughout the last 50 years. Atmospheric ozone

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

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®.