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Historians credit repeated locust invasions

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Historians credit repeated locust invasions [#permalink] New post 06 May 2016, 16:09
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Question Stats:

93% (03:53) correct 6% (02:17) wrong based on 15 sessions
Historians credit repeated locust invasions in the nineteenth century with reshaping United States agriculture west of the Mississippi River. Admonished by government entomologists, farmers began to diversify. Wheat had come to nearly monopolize the region, but it was particularly vulnerable to the locusts. In 1873, just before the locusts’ most withering offensive, nearly two-thirds of Minnesota farmland was producing
wheat; by the invasions’ last year, that fraction had dropped to less than one-sixth. Farmers learned that peas and beans were far less vulnerable to the insects, and corn was a more robust grain than wheat. In addition to planting alternative crops, many farmers turned to dairy and beef production. Although pastures were often damaged by the locusts, these lands were almost always left in better shape than the crops were.


For the following question, consider each of the choices separately and select all that apply.

19. According to the passage, before the recommendations by the government entomologists, which of the following was true about farming west of the
Mississippi River?

A Farmers focused primarily on growing wheat.
B Peas and beans had not yet been planted in the region.
C A relatively small portion of farmland was devoted to crops other than wheat.

[Reveal] Spoiler: OA
A and C


20. In the context in which it appears, “robust” (line 8) most nearly means

A crude
B demanding
C productive
D vigorous
E rich

[Reveal] Spoiler: OA
D



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Question: 19-20
Page: 452

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Joined: 07 Jun 2014
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Re: Historians credit repeated locust invasions [#permalink] New post 06 May 2016, 16:12
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Explanation

The passage explains how the damage caused by repeated invasions of locusts in the nineteenth century caused farmers west of the Mississippi River to diversify. Since wheat, the dominant crop in the region, was especially susceptible to damage from locusts, it made sense for farmers to lower their wheat production and raise their production of other crops and animals less vulnerable to locust invasions.

Question 19

Choices A and C are correct.

Choice A is correct: according to the passage, “wheat had come to nearly monopolize the region” prior to the recommendations of government entomologists.

Choice B is incorrect: although wheat was the dominant crop, there is no indication that peas and beans had not been planted in the region prior to the admonishments of government entomologists.

Choice C is correct: given that wheat was the dominant crop, only a relatively small portion of farmland could have been devoted to other crops.

Question 20

In discussing the advantages of less vulnerable crops, the author describes corn as “robust.” Of the choices presented, “vigorous” is most similar in meaning to “robust.” Neither “crude” nor “demanding” is an advantage, and although being “productive” or “rich” might be desirable, neither matches the meaning of “robust” in this context. Therefore, Choice D is the correct answer.
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Re: Historians credit repeated locust invasions [#permalink] New post 26 Oct 2018, 13:06
Need help !

There is nothing mentioned "A relatively small portion of farmland was devoted to crops other than wheat." about this option.

please explain.
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Re: Historians credit repeated locust invasions [#permalink] New post 29 Oct 2018, 10:31
Expert's post
This is not the hardest passage I read in my life. But it is a bit tricky.

However, I do think you didnt read it very carefully. The first question is an inference one.

Quote:
Historians credit repeated locust invasions in the nineteenth century with reshaping United States agriculture west of the Mississippi River. Admonished by government entomologists, farmers began to diversify. Wheat had come to nearly monopolize the region, but it was particularly vulnerable to the locusts. In 1873, just before the locusts’ most withering offensive, nearly two-thirds of Minnesota farmland was producing
wheat


if you see the red part, you suddenly notice that someone among all farmers cultivated something else other than wheat.

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Re: Historians credit repeated locust invasions   [#permalink] 29 Oct 2018, 10:31
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