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

It is currently 16 Apr 2014, 11:57

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

Herbicides allow cereal crops to be grown very efficiently,

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Manager
Manager
Joined: 17 Aug 2005
Posts: 167
Followers: 1

Kudos [?]: 9 [1] , given: 0

Herbicides allow cereal crops to be grown very efficiently, [#permalink] New post 10 Oct 2005, 06:41
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

86% (02:18) correct 13% (00:00) wrong based on 15 sessions
Herbicides allow cereal crops to be grown very efficiently, with virtually no competition for weeds. In Britain, the partridge populations have been steadily decreasing since herbicide use became widespread. Some environmentalists claim that these birds, which live in and around cereal crop fields, are being poisoned by the herbicides. However, tests show no more than trace quantities of herbicides in partridges on herbicide treated land. Therefore, something other than herbicide use must be responsible for the population decrease.

Which of the following, if true about Britain, most seriously weakens the argument?

(A) The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks’ diet.
(B) Since partridges are valued as game birds, records of their population are more carefully kept than those for many other birds
(C) Some of the weeds that are eliminated from cereal crop fields by herbicides are much smaller than the crop plants themselves and would have no negative effect on crop yield if they were allowed to grow
(D) Birds other than partridges that live in and around cereal crop fields have also been suffering population declines.
(E) The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them

I need an explanation for this please.
1 KUDOS received
Manager
Manager
Joined: 21 Sep 2005
Posts: 233
Followers: 1

Kudos [?]: 3 [1] , given: 0

GMAT Tests User
 [#permalink] New post 10 Oct 2005, 07:13
1
This post received
KUDOS
go A go...
1 KUDOS received
Senior Manager
Senior Manager
Joined: 29 Nov 2004
Posts: 486
Location: Chicago
Followers: 1

Kudos [?]: 3 [1] , given: 0

GMAT Tests User
 [#permalink] New post 10 Oct 2005, 07:52
1
This post received
KUDOS
A it is, it proves the population decrease is a result of herbicide use indirectly..
_________________

Fear Mediocrity, Respect Ignorance

1 KUDOS received
Director
Director
Joined: 09 Jul 2005
Posts: 595
Followers: 2

Kudos [?]: 19 [1] , given: 0

GMAT Tests User
 [#permalink] New post 11 Oct 2005, 14:59
1
This post received
KUDOS
The author is arguing that the explanation used by environmentalists is not correct. In order to weaken the argument, evidence supporting the environmentalists' explanation must be given. A is the only answer choice that supports this explanation.

Hope to be useful for u.
1 KUDOS received
Manager
Manager
Joined: 17 Aug 2005
Posts: 167
Followers: 1

Kudos [?]: 9 [1] , given: 0

 [#permalink] New post 12 Oct 2005, 12:10
1
This post received
KUDOS
This one really confused me. It seemed that A strengthened the argument instead of weakened it but I will read again and try to see where I went wrong in my reasoning.
1 KUDOS received
Senior Manager
Senior Manager
Joined: 11 May 2004
Posts: 460
Location: New York
Followers: 1

Kudos [?]: 8 [1] , given: 0

GMAT Tests User
Re: CR - Herbicide Use [#permalink] New post 12 Oct 2005, 13:09
1
This post received
KUDOS
Go with A. Stimulus says that the herbicide is causing the decrease. conclusion is something else is responsible. We need a statment to weaken the conclusion.
A indirectly weakens the conclusion. Because of the herbicide, the decrease in plants is reducing the food supply for the birds.

kimmyg wrote:
Herbicides allow cereal crops to be grown very efficiently, with virtually no competition for weeds. In Britain, the partridge populations have been steadily decreasing since herbicide use became widespread. Some environmentalists claim that these birds, which live in and around cereal crop fields, are being poisoned by the herbicides. However, tests show no more than trace quantities of herbicides in partridges on herbicide treated land. Therefore, something other than herbicide use must be responsible for the population decrease.

Which of the following, if true about Britain, most seriously weakens the argument?

(A) The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks’ diet.
(B) Since partridges are valued as game birds, records of their population are more carefully kept than those for many other birds
(C) Some of the weeds that are eliminated from cereal crop fields by herbicides are much smaller than the crop plants themselves and would have no negative effect on crop yield if they were allowed to grow
(D) Birds other than partridges that live in and around cereal crop fields have also been suffering population declines.
(E) The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them

I need an explanation for this please.
1 KUDOS received
SVP
SVP
User avatar
Joined: 28 May 2005
Posts: 1743
Location: Dhaka
Followers: 6

Kudos [?]: 25 [1] , given: 0

GMAT Tests User
 [#permalink] New post 12 Oct 2005, 13:30
1
This post received
KUDOS
A is infact strenthening the argument.

I will choose D
_________________

hey ya......

1 KUDOS received
Director
Director
Joined: 09 Jul 2005
Posts: 595
Followers: 2

Kudos [?]: 19 [1] , given: 0

GMAT Tests User
 [#permalink] New post 12 Oct 2005, 13:53
1
This post received
KUDOS
The argument can be reduce to the two following claims:
1.Environmentalist: The birds are being posioning by the herbicides
2.Author of the passage: Something other than the herbicide use must be responsible for the population decrease.

All us agree that B,C and E are irrelevant.

(A) The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks’ diet.

If this is true, the birds are nor being poisoning, and this strengths author's argument.

The only choice should be D.

OA plz!!!
1 KUDOS received
Manager
Manager
Joined: 17 Aug 2005
Posts: 167
Followers: 1

Kudos [?]: 9 [1] , given: 0

 [#permalink] New post 13 Oct 2005, 07:37
1
This post received
KUDOS
OA given is A

It's from GMAT Prep test so there's no explanation

The only way it makes sense is if one can reason that herbicide use causes the weeds to be reduced therefore causing the decrease in the partridge population

so in essence, herbicide use does cause the decrease in partridge population....
1 KUDOS received
SVP
SVP
User avatar
Joined: 16 Oct 2003
Posts: 1818
Followers: 3

Kudos [?]: 26 [1] , given: 0

GMAT Tests User
 [#permalink] New post 13 Oct 2005, 08:18
1
This post received
KUDOS
Yes A.
1 KUDOS received
Director
Director
Joined: 29 Nov 2012
Posts: 936
Followers: 11

Kudos [?]: 157 [1] , given: 543

Re: Herbicides allow cereal crops to be grown very efficiently, [#permalink] New post 11 Jul 2013, 02:20
1
This post received
KUDOS
Can someone explain this question I picked E
_________________

Click +1 Kudos if my post helped...

Amazing Free video explanation for all Quant questions from OG 13 and much more http://www.gmatquantum.com/og13th/

GMAT Prep software What if scenarios gmat-prep-software-analysis-and-what-if-scenarios-146146.html

2 KUDOS received
Director
Director
User avatar
Joined: 14 Dec 2012
Posts: 836
Location: India
Concentration: Finance, Real Estate
GMAT 1: 640 Q49 V29
GMAT 2: 670 Q50 V29
GMAT 3: 620 Q49 V26
GMAT 4: 700 Q50 V34
GPA: 3.6
Followers: 35

Kudos [?]: 481 [2] , given: 196

Re: Herbicides allow cereal crops to be grown very efficiently, [#permalink] New post 11 Jul 2013, 02:48
2
This post received
KUDOS
fozzzy wrote:
Can someone explain this question I picked E


Herbicides allow cereal crops to be grown very efficiently, with virtually no competition for weeds. In Britain, the partridge populations have been steadily decreasing since herbicide use became widespread. Some environmentalists claim that these birds, which live in and around cereal crop fields, are being poisoned by the herbicides. However, tests show no more than trace quantities of herbicides in partridges on herbicide treated land. Therefore, something other than herbicide use must be responsible for the population decrease.

Which of the following, if true about Britain, most seriously weakens the argument?

(A) The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks’ diet.
(B) Since partridges are valued as game birds, records of their population are more carefully kept than those for many other birds
(C) Some of the weeds that are eliminated from cereal crop fields by herbicides are much smaller than the crop plants themselves and would have no negative effect on crop yield if they were allowed to grow
(D) Birds other than partridges that live in and around cereal crop fields have also been suffering population declines.
(E) The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them

conclusion:something OTHER THAN herbicide use must be responsible for the population decrease.

we have to weaken this means we have to show that population decrease is because of the herbicide use (and not other than herbicide use) .

option A:The elimination of certain weeds from cereal crop fields has reduced the population of the SMALL INSECTS that live on those weeds and thatform a major part of partridge chicks’ diet.==>So here insects are dying because of herbicides..and insects are major part of birds diet.==>means birds are lacking in their food and because of this they are dying...===>so overall it is effect of HERBICIDES ONLY..hence it weakens==>correct

option E:The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them ==>MEANS if somebody ingested that toxins it can be readily find in the tissues===>its stating fact====>that if you eat 5gms of toxins then it can be detected on your tissues...does this say it is poisoning birds...or what amount does this will poison bird.....so its stating a fact====and hence not affecting the conclusion.

hope it helps
_________________

When you want to succeed as bad as you want to breathe ...then you will be successfull....

GIVE VALUE TO OFFICIAL QUESTIONS...



GMAT RCs VOCABULARY LIST: vocabulary-list-for-gmat-reading-comprehension-155228.html
learn AWA writing techniques while watching video : http://www.gmatprepnow.com/module/gmat- ... assessment
: http://www.youtube.com/watch?v=APt9ITygGss

Re: Herbicides allow cereal crops to be grown very efficiently,   [#permalink] 11 Jul 2013, 02:48
    Similar topics Author Replies Last post
Similar
Topics:
New posts breakfast cereals singh_satya 9 30 May 2004, 16:46
New posts Math efficiency MA466 2 08 Mar 2006, 09:53
New posts Crops Hayabusa 1 06 Nov 2007, 22:57
Popular new posts 1 Herbicides allow cereal crop to be grown very efficiently, ttwang56 12 06 Sep 2008, 19:00
New posts 3 It s very hard to determine correctly the efficiency of new guerrero25 3 08 Jun 2013, 03:49
Display posts from previous: Sort by

Herbicides allow cereal crops to be grown very efficiently,

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.