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Agricultural societies cannot exist without the staple

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Joined: 19 Jul 2012
Posts: 169

Kudos [?]: 269 [0], given: 31

Location: India
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Agricultural societies cannot exist without the staple [#permalink]

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15 Nov 2012, 05:32
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Agricultural societies cannot exist without the staple crops. Several food plants, such as kola and okra, are known to have been domesticated in the western Africa, but they are all supplemental, not staple food. All the recorded staple crops grown in western Africa were introduced from elsewhere, beginning, at some unknown date, with rice and yams. Therefore, discovering when rice and yams were introduced into western Africa would establish the earliest date at which agricultural societies could have arisen there.

Which of the following is an assumption on which the argument depends?

A. People in western Africa did not develop staple crops that they stopped cultivating once rice and yams were introduced.
B. There are no plants native to western Africa that, if domesticated, could serve as staple food crops.
C. Rice and yams were grown as staple crops by the earliest agricultural societies outside of western Africa.
D. Kola and okra are better suited to growing conditions in western Africa than domesticated rice and yams are.
E. Kola and okra were domesticated in western Africa before rice and yams were introduced there.
[Reveal] Spoiler: OA

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Re: Agricultural societies cannot exist without the staple crops [#permalink]

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15 Nov 2012, 10:26
Vineetk wrote:
Agricultural societies cannot exist without the staple crops. Several food plants, such as kola and okra, are known to have been domesticated in the western Africa, but they are all supplemental, not staple food. All the recorded staple crops grown in western Africa were introduced from elsewhere, beginning, at some unknown date, with rice and yams. Therefore, discovering when rice and yams were introduced into western Africa would establish the earliest date at which agricultural societies could have arisen there.

Which of the following is an assumption on which the argument depends?

A. People in western Africa did not develop staple crops that they stopped cultivating once rice and yams were introduced.
B. There are no plants native to western Africa that, if domesticated, could serve as staple food crops.
C. Rice and yams were grown as staple crops by the earliest agricultural societies outside of western Africa.
D. Kola and okra are better suited to growing conditions in western Africa than domesticated rice and yams are.
E. Kola and okra were domesticated in western Africa before rice and yams were introduced there.

Argument says 'staple crops grown in western Africa were introduced from elsewhere, at some unknown date, with rice and yams. Therefore, discovering when rice and yams were introduced into western Africa would establish the earliest date at which agricultural societies could have arisen there'
This sentence in stating- date of introduction of rice in Africa could establish the "earliest" date at which agricultural societies were present there, clearly assumes that there was 'never' a staple crop in africa before rice was introduced there. ans A restates the same point.

Ans A it is.
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Re: Agricultural societies cannot exist without the staple crops   [#permalink] 15 Nov 2012, 10:26
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Agricultural societies cannot exist without the staple

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