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

It is currently 29 Aug 2015, 14:04
GMAT Club Tests

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

A major chemical spill occurred five years ago at Baker s

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
VP
VP
User avatar
Joined: 03 Apr 2007
Posts: 1376
Followers: 3

Kudos [?]: 312 [1] , given: 10

Reviews Badge
A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Jun 2008, 19:17
1
This post received
KUDOS
5
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

55% (02:39) correct 45% (02:01) wrong based on 258 sessions
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s Beach has actually increased somewhat since five years ago. Clearly, environmentalists’ prediction that the world’s Merrick population would decline as a result of the spill has proven unfounded.

Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists’ prediction?

A. The chemical spill five years ago occurred at a time when there were neither Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant decline in the population of one of the several species of sea birds that prey on Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase the Merrick sea turtle population by transferring eggs from Baker’s Beach to nearby beaches that had not been affected by the spill.
[Reveal] Spoiler: OA
CEO
CEO
User avatar
Joined: 17 May 2007
Posts: 2994
Followers: 59

Kudos [?]: 493 [0], given: 210

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Jun 2008, 19:26
B because it provides an alternative explanation to why there could be more sea turtles returning in 5 years.


goalsnr wrote:
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?
A. The chemical spill five years ago occurred at a time when there were neither
Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs
when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea
turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s
Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant
decline in the population of one of the several species of sea birds that prey on
Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase
the Merrick sea turtle population by transferring eggs from Baker’s Beach to
nearby beaches that had not been affected by the spill.
Director
Director
avatar
Joined: 23 Sep 2007
Posts: 791
Followers: 5

Kudos [?]: 115 [0], given: 0

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Jun 2008, 19:28
B
Intern
Intern
avatar
Joined: 14 May 2008
Posts: 38
Followers: 0

Kudos [?]: 13 [0], given: 0

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Jun 2008, 19:29
goalsnr wrote:
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?
A. The chemical spill five years ago occurred at a time when there were neither
Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs
when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea
turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s
Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant
decline in the population of one of the several species of sea birds that prey on
Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase
the Merrick sea turtle population by transferring eggs from Baker’s Beach to
nearby beaches that had not been affected by the spill.



B for me.
Manager
Manager
avatar
Joined: 21 Mar 2008
Posts: 244
Followers: 2

Kudos [?]: 21 [0], given: 0

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Jun 2008, 20:03
goalsnr wrote:
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?
A. The chemical spill five years ago occurred at a time when there were neither
Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs
when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea
turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s
Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant
decline in the population of one of the several species of sea birds that prey on
Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase
the Merrick sea turtle population by transferring eggs from Baker’s Beach to
nearby beaches that had not been affected by the spill.


B for me as it creates an opportunity for the explanation of the increased number of turtles laying eggs and also does not kill the environmentalists prediction
VP
VP
User avatar
Joined: 03 Apr 2007
Posts: 1376
Followers: 3

Kudos [?]: 312 [0], given: 10

Reviews Badge
Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 19 Jun 2008, 16:28
OA is B
Intern
Intern
avatar
Joined: 27 Jan 2013
Posts: 14
Location: India
Concentration: Strategy, Finance
GMAT 1: 660 Q46 V35
GPA: 3.6
WE: Business Development (Energy and Utilities)
Followers: 0

Kudos [?]: 7 [0], given: 36

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 30 Oct 2013, 11:05
goalsnr wrote:
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?
A. Th



I'll go for B, since it provides a reason why the number of turtles has increase.
Manager
Manager
avatar
Joined: 12 May 2013
Posts: 84
Followers: 1

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

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 15 Aug 2014, 04:12
how B ?
can anyone please explain ?

thank you!
Verbal Forum Moderator
Verbal Forum Moderator
User avatar
Joined: 05 Nov 2012
Posts: 433
Concentration: Technology, Other
GMAT 1: Q47 V29
Followers: 9

Kudos [?]: 135 [0], given: 560

GMAT ToolKit User Premium Member CAT Tests
Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 15 Aug 2014, 23:17
Hi adymehta29,
Below is my reasoning for B. Initially I also got stumped by B .
Regards.
Conclusion:
environmentalists’ prediction that the world’s Merrick population would decline as a result of the spill has proven unfounded.
Premise:
1. A major chemical spill occurred five years ago at Baker’s Beach, "the world’s sole nesting ground for Merrick sea turtles", and prevented nearly all the eggs laid that year from hatching.
2. Yet the number of adult female Merricks returning to lay their eggs at Baker’s Beach has actually increased somewhat since five years ago.
Assumption:These turtles are from the same batch that survived 5 years ago on Baker's Beach.
Weakener: What if these are not from that batch.Then that way environmentalist argument wont be broken and hence author conclusion wold be weaken.

Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists’ prediction?
B does that.
If Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs when they are ten years old , then they are not from the same batch. They must be from an earlier batch and hence they were not impacted from the accident on Baker's Beach 5 years ago.
_________________

--------------------------------------------------------
Regards :)

Expert Post
EMPOWERgmat Instructor
User avatar
Joined: 25 Jul 2014
Posts: 14
Followers: 1

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

Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 16 Aug 2014, 21:00
Expert's post
adymehta29 wrote:
how B ?
can anyone please explain ?

thank you!


Hi adymehta29,

Let me highlight some of the key facts from the prompt first:

A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.

Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?

Goal:
We need to weaken the argument attempting to disprove environmentalists' claim that the sea turtle population would decline (put that another way: we need to show that the sea turtle population could still be harmed by the spill).

B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs
when they are ten years old.

If the turtles return when they're 10, then we have a scenario that shows that what's happening right now in no way can be used as a measure of the health of the sea turtle population. With this answer the turtles from the year of the spill could have been decimated, but the number of turtles right now could be bigger than ever if what we're seeing right now are those returning after 10 years.

If you'd like some additional follow up let me know. I'd be happy to help.
_________________

Allen T.
EMPOWERgmat Advisor
http://www.empowergmat.com

EMPOWERgmat GMAT Club Page, Study Plans, & Discounts
http://gmatclub.com/blog/courses/empowergmat-discount/?fl=menu

Image

Senior Manager
Senior Manager
User avatar
Joined: 01 Nov 2013
Posts: 282
WE: General Management (Energy and Utilities)
Followers: 2

Kudos [?]: 75 [0], given: 390

Reviews Badge CAT Tests
Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 09 Mar 2015, 03:35
goalsnr wrote:
A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting
ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from
hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s
Beach has actually increased somewhat since five years ago. Clearly, environmentalists’
prediction that the world’s Merrick population would decline as a result of the spill has
proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in
refutation of the environmentalists’ prediction?
A. The chemical spill five years ago occurred at a time when there were neither
Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.
B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs
when they are ten years old.
C. Under normal conditions, only a small proportion of hatchling female Merrick sea
turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s
Beach.
D. Environmental pressures unrelated to the chemical spill have caused a significant
decline in the population of one of the several species of sea birds that prey on
Merrick sea turtle eggs.
E. After the chemical spill, an environmental group rejected a proposal to increase
the Merrick sea turtle population by transferring eggs from Baker’s Beach to
nearby beaches that had not been affected by the spill.



A- Contradicts the information in the passage.
B- We need to weaken the refutation. This option is plausible since it gives a reason to believe that indeed the eggs did not hatch and the returning females were actually born almost 5 years before the spill and thus remained unaffected.These females do not represent any successful hatching of eggs after the spill .
C-Irrelevant. Does not refute the prediction in any way. Instead it slightly strengthens the refutation.
D-Irrelevant. Does not refute the prediction in any way. Instead strengthens the refutation.
C-Irrelevant. Does not refute the prediction in any way. Instead it slightly strengthens the refutation.
_________________

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.-Mohammad Ali

Intern
Intern
User avatar
Joined: 18 May 2014
Posts: 34
Followers: 1

Kudos [?]: 9 [0], given: 152

CAT Tests
Re: A major chemical spill occurred five years ago at Baker s [#permalink] New post 24 Mar 2015, 09:03
B!

To prove : the population HAS INDEED come down (and will go down in future)

B proves that females take 10 years to return thus proving that the number of females who returned now would be born 10 years before thus we
cannot make judgement based on the number returned this year.
Re: A major chemical spill occurred five years ago at Baker s   [#permalink] 24 Mar 2015, 09:03
    Similar topics Author Replies Last post
Similar
Topics:
Twelve years ago and again five years ago, there were mrinal2100 3 27 Aug 2011, 23:46
9 Twelve years ago and again five years ago, there were prasannar 22 06 Apr 2008, 04:44
A major chemical spill occurred five years ago at Baker s stevegt 6 12 Jul 2007, 08:27
Twelve years ago and again five years ago, there were Swagatalakshmi 13 28 Feb 2007, 23:57
1 Experts publish their posts in the topic Twelve years ago and again five years ago, there were joemama142000 22 24 Apr 2006, 05:31
Display posts from previous: Sort by

A major chemical spill occurred five years ago at Baker s

  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®.