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Deep tillage is even more deliterious to the world's topsoil

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Re: Deep tillage is even more deliterious to the world's topsoil  [#permalink]

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New post 26 Aug 2015, 06:57
Macsen wrote:
Deep tillage is even more deliterious to the world's topsoil supply than previously believed. For example, farmers who till deeply are ten times more likely to lose topsoil to erosion than are farmers who use no-till methods. Results like these make it clear that farmers who now till deeply should strive, by using other topsoil aeration techniques, to incorporate no-till methods instead.

The argument depends on assuming which one of the following?

A. Topsoil erosion does not make farmers want to till more deeply.
B. In deep-tillage farming, the deeper one tills, the greater the susceptibility to topsoil erosion.
C. Tilling by any method other than deep tillage is not a viable option.
D. The most expensive farming methods employ topsoil aeration techniques other than deep tillage.
E. On average, topsoil that is no-tilled is more aerated than topsoil that is tilled deeply.



Explanation:

The conclusion of the argument is that farmers who now till deeply should use no-till methods. For this to be true(that "no-till"methods are the only viable option) there should not be any other tilling method.In other words,if there is any other tilling method,farmers need not incorporate no-till methods in which case the conclusion fails.
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Re: Deep tillage is even more deliterious to the world's topsoil  [#permalink]

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New post 28 Sep 2015, 22:24
Macsen wrote:
Deep tillage is even more deliterious to the world's topsoil supply than previously believed. For example, farmers who till deeply are ten times more likely to lose topsoil to erosion than are farmers who use no-till methods. Results like these make it clear that farmers who now till deeply should strive, by using other topsoil aeration techniques, to incorporate no-till methods instead.

The argument depends on assuming which one of the following?

A. Topsoil erosion does not make farmers want to till more deeply.
B. In deep-tillage farming, the deeper one tills, the greater the susceptibility to topsoil erosion.
C. Tilling by any method other than deep tillage is not a viable option.
D. The most expensive farming methods employ topsoil aeration techniques other than deep tillage.
E. On average, topsoil that is no-tilled is more aerated than topsoil that is tilled deeply.


I can confirm that OA is C. This is an LSAT question.
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Re: Deep tillage is even more deliterious to the world's topsoil  [#permalink]

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New post 29 Oct 2017, 04:44
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).

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Re: Deep tillage is even more deliterious to the world's topsoil &nbs [#permalink] 29 Oct 2017, 04:44

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