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

It is currently 25 Jul 2014, 03:53

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

On average, plowed land erodes away at slightly more than 1

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 21 Sep 2011
Posts: 10
Followers: 0

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

GMAT Tests User
On average, plowed land erodes away at slightly more than 1 [#permalink] New post 12 Oct 2011, 18:40
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

57% (02:58) correct 43% (02:32) wrong based on 103 sessions
On average, plowed land erodes away at slightly more than 1 millimeter per year, while new soil builds up at about 0.2 millimeters per year. As a result, continually cultivated soil will become exhausted in the space of several hundred years,
unless no-till agriculture is practiced. No-till agriculture is a method in which crop stubble remains in place and a special drill inserts the seeds into the soil. However, only about 16 percent of cultivated areas in the United States use this method.

Which of the following is best supported by the information above?

(A) Although the advance of farming technology has made no-till agriculture available to wealthy farmers, such methods are financially impractical for many American farmers.
(B) If the United States does not utilize means that replenish or reuse exhausted soil, it must eventually ! nd other ways of getting agricultural products.
(C) Agricultural industries that do not require plowing - such as dairy or chicken farms - are not affected by topsoil erosion.
(D) If 5 out of 6 of all American farms were to practice no-till agriculture, the United States would produce enough agricultural products to meet domestic demand for several hundred years.
(E) Hydroponic farming (farming without soil) would solve the United States’ land erosion problem.

-------
Please consider Kudos if this got you thinking!
[Reveal] Spoiler: OA
Manager
Manager
avatar
Joined: 28 Sep 2011
Posts: 89
Followers: 0

Kudos [?]: 14 [0], given: 15

Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 18:49
I vote for B.

Everything else seems to be largely out of scope. Only B seems to form some logical line of reasoning, although not the most convincing sort.
Intern
Intern
avatar
Joined: 21 Sep 2011
Posts: 10
Followers: 0

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

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:03
I don't like B very much.
According to B: if US "does not utilize means that replenish or reuse exhausted soil" then it must eventually find other ways of getting agricultural products

However, the stimulus says:
As a result, continually cultivated soil will become exhausted in the space of several hundred years, unless no-till agriculture is practiced.
I interpret this statement to mean -
US can practice 'No-Till' agriculture and solve the solve the soil erosion problem. And 'No Till' agriculture doesn't replinish or reuse exhausted soil. Therefore, we can use 'no-till' agriculture (without the need to replinish/reuse exhausted soil) and NEVER need to find other ways of getting agricultural products (eg: importing agri products from other countries)
Manager
Manager
avatar
Joined: 28 Sep 2011
Posts: 89
Followers: 0

Kudos [?]: 14 [0], given: 15

Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:10
^ You are right in stating that the US can use No-till agriculture to negate the impending doom, but wrong to assume that they will do just that! From what we know, "only 16 percent of cultivated areas in the United States use this (No-till) method". There is no indication from the premise that US is considering to promote this technology to larger areas. So the way things are right now, soil erosion seems to be an inevitability. And that only means... B!
Intern
Intern
avatar
Joined: 21 Sep 2011
Posts: 10
Followers: 0

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

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:19
Yes, i agree with you that there is no indication that US WILL use no-till farming. But, the fact that US CAN use no-till farming is enough to eliminate B.

If US can use no-farming then it is not true that " it must eventually find other ways of getting agricultural products."
It CAN use 'no-till faming' OR 'find other ways of getting agri products'
Therefore, saying that US MUST find other ways is wrong (IMHO)
Intern
Intern
avatar
Joined: 23 Sep 2011
Posts: 30
Location: Singapore
Concentration: Finance, Entrepreneurship
GPA: 3.44
WE: Information Technology (Investment Banking)
Followers: 0

Kudos [?]: 7 [0], given: 10

Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:35
I'm after D.

If 5 out of 6 farms practice no-till agriculture, the erosion would be one-sixth of 1mm ~ .167 mm/year but new soil builds up at 0.2 mm/year. So there is really no risk of erosion.
Manager
Manager
avatar
Joined: 28 Sep 2011
Posts: 89
Followers: 0

Kudos [?]: 14 [0], given: 15

Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:41
vgmats wrote:
Yes, i agree with you that there is no indication that US WILL use no-till farming. But, the fact that US CAN use no-till farming is enough to eliminate B.

If US can use no-farming then it is not true that " it must eventually find other ways of getting agricultural products."
It CAN use 'no-till faming' OR 'find other ways of getting agri products'
Therefore, saying that US MUST find other ways is wrong (IMHO)


^ Without soil to work with, will no-till farming work? Unless you assume that US will use no-till farming at some point BEFORE soil erosion reaches critical ( unsustainable ) levels, no-till farming is not going to save the day.
Besides, the other options seem to be out of scope?

Last edited by DexDee on 12 Oct 2011, 19:45, edited 1 time in total.
Manager
Manager
avatar
Joined: 28 Sep 2011
Posts: 89
Followers: 0

Kudos [?]: 14 [0], given: 15

Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 19:43
donkadsw wrote:
I'm after D.

If 5 out of 6 farms practice no-till agriculture, the erosion would be one-sixth of 1mm ~ .167 mm/year but new soil builds up at 0.2 mm/year. So there is really no risk of erosion.


This logic works only if you assume that all farms are of equal size. At the least, 5 farms together must be greater than the size of the sixth farm. I had discounted D because we are required to make such an assumption.
Intern
Intern
avatar
Joined: 21 Sep 2011
Posts: 10
Followers: 0

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

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 12 Oct 2011, 20:49
Continuing on Option B:

Lets call:
A = No-Till Farming by US
B = US adopts methods to replinish and reuse exhausted soil
C = Land Erosion Reaches Critical Levels
D = US needs to resort to alternative ways to get agri products (eg export them)

According to the Stimulus:
A CAN Prevent B

Common Sense:
If B happens we can prevent C
If C Happens then D MUST Happen

According to the 2nd Option
If B does not happen then D MUST happen
But Actually from above: If A AND B do not happen then D must happen

Nothing Says A does NOT Happen...therefore it is wrong to say C (and consequently D) will happen.
Intern
Intern
avatar
Joined: 15 Apr 2011
Posts: 34
Followers: 0

Kudos [?]: 0 [0], given: 2

Re: CR - Land Erosion [#permalink] New post 13 Oct 2011, 08:52
I also think it should be D.

Options B seems to suggest something which is not mentioned in the stimulus.

But option D certainly points out that No Till agriculture should be followed as given in the stimulus.

Hope I am correct. Please post the OA now.
Manager
Manager
avatar
Joined: 12 Jul 2011
Posts: 154
Concentration: Operations, Strategy
GMAT 1: 680 Q46 V37
WE: Engineering (Telecommunications)
Followers: 0

Kudos [?]: 13 [0], given: 42

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 14 Oct 2011, 02:17
OA Plz !!
I am for D :)
Senior Manager
Senior Manager
avatar
Joined: 18 Sep 2009
Posts: 374
Followers: 3

Kudos [?]: 45 [0], given: 2

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 14 Oct 2011, 07:07
I vote for B
Senior Manager
Senior Manager
avatar
Joined: 15 Feb 2011
Posts: 263
Followers: 4

Kudos [?]: 12 [0], given: 9

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 14 Oct 2011, 08:15
Narrowed down to B & D..chose B...
Manager
Manager
avatar
Joined: 06 Feb 2011
Posts: 84
GMAT 1: Q V
GMAT 2: Q V
GMAT 3: Q V
WE: Information Technology (Computer Software)
Followers: 0

Kudos [?]: 6 [0], given: 11

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 14 Oct 2011, 10:22
I vote for B as well, with the choice between B and D.
1 KUDOS received
Intern
Intern
avatar
Joined: 21 Sep 2011
Posts: 10
Followers: 0

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

GMAT Tests User
Re: CR - Land Erosion [#permalink] New post 14 Oct 2011, 17:15
1
This post received
KUDOS
OA is
[Reveal] Spoiler:
B


I'm not convinced with the OA, but seems like the best option.

Anyone else feels that this is not a very GMAT-like question?
Intern
Intern
avatar
Status: getting there
Joined: 23 Dec 2012
Posts: 38
Concentration: General Management, Entrepreneurship
Schools: Tuck '16
Followers: 0

Kudos [?]: 13 [0], given: 131

Re: CR - Land Erosion [#permalink] New post 07 Nov 2013, 14:45
vgmats wrote:
OA is
[Reveal] Spoiler:
B


I'm not convinced with the OA, but seems like the best option.

Anyone else feels that this is not a very GMAT-like question?


I agree with you that this is unlike an official question, which has a unambiguous answer.
But the other options are out of scope or assume a lot of information, making B the most appealing choice
_________________

impossible is nothing

Verbal Forum Moderator
Verbal Forum Moderator
avatar
Joined: 23 Jul 2010
Posts: 483
Followers: 40

Kudos [?]: 395 [0], given: 239

Premium Member
Re: CR - Land Erosion [#permalink] New post 07 Nov 2013, 18:12
bluemints wrote:
vgmats wrote:
OA is
[Reveal] Spoiler:
B


I'm not convinced with the OA, but seems like the best option.

Anyone else feels that this is not a very GMAT-like question?


I agree with you that this is unlike an official question, which has a unambiguous answer.
But the other options are out of scope or assume a lot of information, making B the most appealing choice


Agree with you'll on this.
The official Inference/Must be true questions have options that are pretty straight forward and many a times are paraphrases or extended inferences of the conclusion.
No extra or outside information besides the question stem is included in the options.
But the option B stands out since all the rest are pretty bad/easy to eliminate.
_________________

How to CHOOSE your Business School
Thanks = Kudos. Kudos are appreciated

Rules for posting on the verbal forum
When you post a question Pls. Provide its source & TAG your questions
Avoid posting from unreliable sources such as 1000 series.

Re: CR - Land Erosion   [#permalink] 07 Nov 2013, 18:12
    Similar topics Author Replies Last post
Similar
Topics:
The Dancing Doll line sold slightly more than$3.5 million rajnikant47 0 23 Aug 2013, 02:17
1 Experts publish their posts in the topic The Dancing Doll line sold slightly more than $3.5 million ratinarace 4 05 Apr 2013, 02:31
The Dancing Doll line sold slightly more than $3.5 million bupbebeo 9 29 Apr 2010, 09:14
The dancing doll line sold slightly more than $3.5 million angel2009 6 27 Jan 2010, 07:10
4 Experts publish their posts in the topic The Dancing Doll line sold slightly more than $3.5 million english_august 49 31 Oct 2007, 03:45
Display posts from previous: Sort by

On average, plowed land erodes away at slightly more than 1

  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®.