It is currently 25 Feb 2018, 01:44

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Some experts warn that global warming will reduce food

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

Hide Tags

2 KUDOS received
Senior Manager
Senior Manager
User avatar
Status: 750+ or Burst !
Joined: 01 May 2011
Posts: 384
Location: India
Concentration: General Management, Strategy
GMAT 1: 670 Q48 V35
GPA: 3.5
GMAT ToolKit User
Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 05 Jun 2011, 08:17
2
This post received
KUDOS
13
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

46% (01:44) correct 54% (02:00) wrong based on 719 sessions

HideShow timer Statistics

Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer
[Reveal] Spoiler: OA
1 KUDOS received
Math Forum Moderator
avatar
Joined: 20 Dec 2010
Posts: 1945
Re: Global Warming - CR [#permalink]

Show Tags

New post 05 Jun 2011, 10:39
1
This post received
KUDOS
akhileshgupta05 wrote:
Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer


Less hopeful Experts: Food production will decrease due to global warming.
More hopeful experts: Not really!! Food production will decrease only slightly because the rainfall pattern won't change much.

Thus, hopeful experts think that the change in rainfall pattern is the only factor responsible for better/worse food yield.

D is just a restatement of this assumption.

Ans: "D"
_________________

~fluke

GMAT Club Premium Membership - big benefits and savings

1 KUDOS received
VP
VP
avatar
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1260
Re: Global Warming - CR [#permalink]

Show Tags

New post 05 Jun 2011, 22:43
1
This post received
KUDOS
The 2nd statement of the argument -little reason to expect altered rain distribution even with warmer temperatures,leaves a reasoning gap in the argument.

Thus supporter answer choice is required.

D negating this clearly crashes the basis mentioned above. Hence an OA.
_________________

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

Manager
Manager
avatar
Joined: 16 Aug 2011
Posts: 91
Re: Global Warming - CR [#permalink]

Show Tags

New post 04 Nov 2011, 23:10
D
Manager
Manager
User avatar
Status: livin on a prayer!!
Joined: 12 May 2011
Posts: 118
Location: Australia
Re: Global Warming - CR [#permalink]

Show Tags

New post 05 Nov 2011, 18:56
Yup. D is correct. The more hopeful ones claim food production only change only minimally because if minimal altered rain distribution.

Therefore it is assumed that if a warmer period is followed by change in rainfall, it would be more damaging.

Hope that helps.
_________________

Aim for the sky! (800 in this case)
If you like my post, please give me Kudos :)

Manager
Manager
avatar
Joined: 08 Jul 2008
Posts: 139
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 08 Nov 2011, 06:23
D is the correct answer
Intern
Intern
avatar
Joined: 23 Nov 2009
Posts: 19
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 08 Nov 2011, 08:59
akhileshgupta05 wrote:
Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer
Manager
Manager
avatar
Joined: 12 Oct 2011
Posts: 249
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 23 Dec 2011, 21:14
Nice question. Got tricked. Now understand why D is the correct answer though. Thanks. :)
_________________

Consider KUDOS if you feel the effort's worth it

Manager
Manager
User avatar
Joined: 07 Aug 2011
Posts: 168
Location: United States
Concentration: Technology, International Business
GMAT 1: 690 Q48 V37
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 26 Dec 2011, 04:41
D as it states the statement only
Non-Human User
User avatar
Joined: 01 Oct 2013
Posts: 10340
Premium Member
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 07 May 2015, 04:31
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.
Non-Human User
User avatar
Joined: 01 Oct 2013
Posts: 10340
Premium Member
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 25 Sep 2016, 07:16
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.
1 KUDOS received
Senior Manager
Senior Manager
User avatar
G
Status: You have to have the darkness for the dawn to come
Joined: 09 Nov 2012
Posts: 323
Daboo: Sonu
GMAT 1: 590 Q49 V20
GMAT 2: 730 Q50 V38
GMAT ToolKit User Reviews Badge
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 28 Oct 2016, 07:28
1
This post received
KUDOS
akhileshgupta05 wrote:
Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer



Could anybody please negate option D for me and show me how negated D shatters the conclusion
_________________

You have to have the darkness for the dawn to come.

Give Kudos if you like my post

Expert Post
3 KUDOS received
Verbal Expert
User avatar
G
Joined: 14 Dec 2013
Posts: 3315
Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Premium Member Reviews Badge
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 28 Oct 2016, 09:15
3
This post received
KUDOS
Expert's post
daboo343 wrote:
akhileshgupta05 wrote:
Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer



Could anybody please negate option D for me and show me how negated D shatters the conclusion


It does not because D is NOT a necessary assumption in the argument.

Premise: Rainfall patterns will not change and there will be advanced technology - these factors will supersede the damage due to warming effect.

Conclusion: Food production would not be affected.

An assumption is an unstated link between a premise and a conclusion, and option D is not such a link.

In fact, option D is an INFERENCE that one can draw from the passage, but it is NOT an assumption.
Manager
Manager
avatar
S
Joined: 29 May 2016
Posts: 130
CAT Tests
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 29 Oct 2016, 05:28
I have concern with this question... i think answer has to be A rather than D
X says Food production would be affected.
Y says Food production would not be affected (conclusion), because one (K) of the two factors (K and M) is not changing much.
how can we make conclusion less believable..negation of that condition will be the assumption
what if technology (M) also not able to work then definitely the production will be affected.
now think if technology itself is powerful to save the production...
so basically K and M are the factors ... k is not changing anything so it has to be M , which is affecting the yeild
Expert Post
1 KUDOS received
Verbal Expert
User avatar
G
Joined: 14 Dec 2013
Posts: 3315
Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Premium Member Reviews Badge
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 29 Oct 2016, 06:31
1
This post received
KUDOS
Expert's post
mbaprep2016 wrote:
I have concern with this question... i think answer has to be A rather than D
X says Food production would be affected.
Y says Food production would not be affected (conclusion), because one (K) of the two factors (K and M) is not changing much.
how can we make conclusion less believable..negation of that condition will be the assumption
what if technology (M) also not able to work then definitely the production will be affected.
now think if technology itself is powerful to save the production...
so basically K and M are the factors ... k is not changing anything so it has to be M , which is affecting the yeild


A can be a strengthening statement - yet it is not an assumption.
Manager
Manager
avatar
S
Joined: 29 May 2016
Posts: 130
CAT Tests
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 29 Oct 2016, 09:46
sayantanc2k wrote:
mbaprep2016 wrote:
I have concern with this question... i think answer has to be A rather than D
X says Food production would be affected.
Y says Food production would not be affected (conclusion), because one (K) of the two factors (K and M) is not changing much.
how can we make conclusion less believable..negation of that condition will be the assumption
what if technology (M) also not able to work then definitely the production will be affected.
now think if technology itself is powerful to save the production...
so basically K and M are the factors ... k is not changing anything so it has to be M , which is affecting the yeild


A can be a strengthening statement - yet it is not an assumption.



Thanks, agree A can be strengthening statement. SO what possibly be the answer
Expert Post
1 KUDOS received
Verbal Expert
User avatar
G
Joined: 14 Dec 2013
Posts: 3315
Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Premium Member Reviews Badge
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 30 Oct 2016, 13:55
1
This post received
KUDOS
Expert's post
mbaprep2016 wrote:
sayantanc2k wrote:
mbaprep2016 wrote:
I have concern with this question... i think answer has to be A rather than D
X says Food production would be affected.
Y says Food production would not be affected (conclusion), because one (K) of the two factors (K and M) is not changing much.
how can we make conclusion less believable..negation of that condition will be the assumption
what if technology (M) also not able to work then definitely the production will be affected.
now think if technology itself is powerful to save the production...
so basically K and M are the factors ... k is not changing anything so it has to be M , which is affecting the yeild


A can be a strengthening statement - yet it is not an assumption.



Thanks, agree A can be strengthening statement. SO what possibly be the answer


None of the answers can be assumption. The OA D is an inference, not an assumption:
some-experts-warn-that-global-warming-will-reduce-food-114740.html#p1755234
Manager
Manager
avatar
Joined: 21 Jul 2016
Posts: 55
Location: India
Concentration: Strategy, Operations
WE: Other (Computer Software)
Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 31 Oct 2016, 00:04
D is the correct answer

Conclusion: Warming trends wont effect food production
Premise: Little reason to believe that rain distribution would be affected by warming

Argument is trying to say that since rain distribution stays unaffected because of global warming, food production would be untouched. The argument is trying to hinge the reason - rain distribution, as a deciding factor that might have affected food production.

Possible assumptions:
- There are NO other reason apart from 'rain distribution', that affects food production
- 'Rain distribution' is necessary to be affected along with global warming for affecting food production (an extension of 1st assumption)

A is out because - it talks about improved yields.
Rest options are OFS
Expert Post
Verbal Expert
User avatar
G
Joined: 14 Dec 2013
Posts: 3315
Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Premium Member Reviews Badge
Re: Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 10 Nov 2016, 11:00
Spovil wrote:
D is the correct answer

Conclusion: Warming trends wont effect food production
Premise: Little reason to believe that rain distribution would be affected by warming

Argument is trying to say that since rain distribution stays unaffected because of global warming, food production would be untouched. The argument is trying to hinge the reason - rain distribution, as a deciding factor that might have affected food production.

Possible assumptions:
- There are NO other reason apart from 'rain distribution', that affects food production
- 'Rain distribution' is necessary to be affected along with global warming for affecting food production (an extension of 1st assumption)

A is out because - it talks about improved yields.
Rest options are OFS


Try negating - it would then probably be clear why D is not an assumption.

Suppose, the experts assume that the warming trend would NOT be more damaging if accompanied by a change in rainfall patterns. With this assumption their claim that food production will change only minimally still holds. If negating D proved the claim that that food production would change drastically then D could be an assumption.

Now why D is an inference:
1. Food production would not change
2. BECAUSE the rainfall pattern would not change.

The word "because" indicates that if rainfall changes then, then the food production changes. This is an inference from the above 2 facts.

(PS: Strictly speaking even the last statement CANNOT be inferred.

Premise: If A then B.
Conclusion: If not B then not A

Premise: If not A then not B
Conclusion: If B, then A.

Option D falls in the second category of logic structure.

So the correct inference would have been:
If the food production changes , rainfall pattern must have changed.
Intern
Intern
avatar
B
Joined: 06 Jul 2010
Posts: 46
GMAT ToolKit User Reviews Badge
Some experts warn that global warming will reduce food [#permalink]

Show Tags

New post 10 Nov 2016, 11:40
akhileshgupta05 wrote:
Some experts warn that global warming will reduce food production. Others are more hopeful, claiming that food production will change only minimally because there is little reason to expect altered rain distribution even with warmer temperatures. In the case of most crops, annual fluctuation in rainfall and increased use of agricultural technology mask the changes in yield that are due to temperature change.

The claims of the more hopeful experts are based on which of the following assumptions?

A. Technology is so influential that regardless of climate, improved yields are likely.
B. Climate changes cannot be predicted with accuracy.
C. Temperature trends are more predictable than rainfall trends.
D. The warming trend would be more damaging if accompanied by a change in rainfall patterns.
E. Cooling trends threaten food production more than warming trends.

Source: 800 Score Tests
Please Explain your answer


This looks like a defender assumption to me. The argument only relates the global warming with the rain distribution. What about other adverse phenomenon (e.g., flood, storm,...)? We don't know. So it seems that the argument only talks about (one of) the most damaging impacts (aka. altered rain distribution) to food production.

That's something D says. Very subtle IMO!
Some experts warn that global warming will reduce food   [#permalink] 10 Nov 2016, 11:40

Go to page    1   2    Next  [ 24 posts ] 

Display posts from previous: Sort by

Some experts warn that global warming will reduce food

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


cron

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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.