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Locust swarms have ravaged much of Suwathia, resulting in the loss of

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Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 28 Aug 2015, 03:42
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A
B
C
D
E

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  25% (medium)

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76% (02:05) correct 24% (02:21) wrong based on 344 sessions

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Locust swarms have ravaged much of Suwathia, resulting in the loss of vital agriculture. A multinational company has recently proposed using metarhizium, a fungus that invades the exoskeleton of the locust, causing a swift death. The government of Suwathia argues that the one means of application of metarhizia—from an airplane—will require a great amount of the fungus, which is difficult to acquire. Given that the locusts propagate rapidly, the government maintains that only a complete annihilation of a locust swarm will have the desired effect.

Which of the following, if true, best argues in favor of the multinational company’s plan to drop metarhizium over locust swarms?

A) Metarhizium promotes the growth of a strain of bacteria that fosters root development in the crops that the locusts consume.
B) Some swarms of locust can cover over 100,000 square miles.
C) If all of the locusts are not destroyed, Suwathiawill lose millions of acres of crops.
D) An airplane must fly several kilometers ahead of a swarm of locusts to ensure that the metarhizia is correctly deployed upon the rapidly moving swarm.
E) Only one metarhizia-infected locust is necessary to lead to the demise of an entire swarm, since metarhizia can easily spread within a swarm.

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Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post Updated on: 31 Aug 2015, 00:02
Answer choice E
The question stem asks to strengthen the belief of the multinational company which says that the locusts can be killed using the one fungus.
If the entire locust population needs to be swept off, and limited fungus is available, the only way the entire population can be swept off is when just one infected locust can spread the infection to others and kill the entire population.

Answer choice A cannot be the correct answer because it mentions that the root of the crops are strengthened because of this fungus. It doesn't say anything about killing the entire locust population.

Originally posted by nisharaj on 29 Aug 2015, 08:27.
Last edited by nisharaj on 31 Aug 2015, 00:02, edited 1 time in total.
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 30 Aug 2015, 06:20
E says that need in airplane distribution of fungus is minimal, so company's plan will be targeted

E
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 31 Aug 2015, 01:42
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I don't see how this is a 'Weaken' question. Maybe change the tags?
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 31 Aug 2015, 05:31
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Harley1980 wrote:
noTh1ng wrote:
I don't see how this is a 'Weaken' question. Maybe change the tags?


Thanks for reprimand.


Reprimand? I did not mean to offend you ;) Thanks for changing!
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 31 Aug 2015, 05:36
noTh1ng wrote:
Harley1980 wrote:
noTh1ng wrote:
I don't see how this is a 'Weaken' question. Maybe change the tags?


Thanks for reprimand.


Reprimand? I did not mean to offend you ;) Thanks for changing!


You are again right: I look in dictionary and think that I should change "reprimand" on "remark" ;)
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of  [#permalink]

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New post 15 Aug 2018, 18:26

Official Explanation


Premise #1 – MZ kills locusts

Premise #2 – To effectively drop the MZ (via plane), lots MZ is required.

Now it is important to separate the two positions:

Multinational company: Use MZ

Government: MZ too expensive and will need lots because all locusts in a swarm must be killed.

Correct answer will support Multinational Company. In other words, the conclusion is MZ will be effective against locust swarm.

(A) sounds like a good reason not to use MZ. It application will lead to bacteria that help the crops the locusts feed on grow. If anything, this will worsen the problem.

(B) just reaffirms how large—and destructive—locust swarms can be.

(C) is a good reason to find a solution to the locust swarms. It does not, however, speak directly to the

(D) This refers to the difficulty of spreading MZ over a rapidly moving swarm. It does lend strength to the company’s plan.

(E) The government says that one reason not to use MZ is so much is required to wipe out a swarm (and MZ is difficult to acquire). (E), however, clearly indicates that very little MZ is need, because once it is present in one locust, it can quickly spread to the entire swarm, wiping it out.
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Re: Locust swarms have ravaged much of Suwathia, resulting in the loss of   [#permalink] 15 Aug 2018, 18:26
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