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New evidence indicates that recent property development bordering a na

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Director
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New evidence indicates that recent property development bordering a na  [#permalink]

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New post 26 Jul 2018, 08:48
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A
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D
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Difficulty:

  95% (hard)

Question Stats:

43% (02:07) correct 57% (02:22) wrong based on 91 sessions

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New evidence indicates that recent property development bordering a national park has not adversely affected the park 's wildlife. On the contrary, a comparison of the most recent survey of the park's wildlife with one conducted just prior to the development shows that the amount of wildlife has in fact increased over the intervening decade. Moreover, the park's resources can support its current wildlife populations without strain.

Which one of the following, if true, most strengthens the argument?

(A) While both surveys found the same species of animals in the park, the more recent survey found greater numbers of animals belonging to each species.
(B) The more recent survey was taken in the summer, when the diversity of wildlife in the park is at its greatest.
(C) Migration of wildlife into the park from the adjacent developing areas has increased animal populations to levels beyond those that the resources of the park could have supported a decade ago.
(D) The most recent techniques for surveying wildlife are better at locating difficult-to-find animals than were older techniques.
(E) The more recent survey not only involved counting the animals found in the park but, unlike the earlier survey, also provided an inventory of the plant life found within the park.

Source:LSAT

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Re: New evidence indicates that recent property development bordering a na  [#permalink]

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New post 26 Jul 2018, 09:25
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Conclusion: the new survey did not affect wildlife, in fact the wildlife increased in the decade.

We need to strengthen this claim

A..seems good lets keep it.

B..weakens the argument, as weather can skew the survey numbers so claim cannot be made.
C:migration of birds helped incresed the survey numbers, so the growth is not organic. And survey numbers cannot be trusted.
D..survey techniques are not same, that means the new housing can play a role. Doesnt strengthen the argument.
E.again the survey did not have same baselines, out.

Only A is clearly helping the argument.

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Re: New evidence indicates that recent property development bordering a na  [#permalink]

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New post 26 Jul 2018, 10:23
Akela wrote:
New evidence indicates that recent property development bordering a national park has not adversely affected the park 's wildlife. On the contrary, a comparison of the most recent survey of the park's wildlife with one conducted just prior to the development shows that the amount of wildlife has in fact increased over the intervening decade. Moreover, the park's resources can support its current wildlife populations without strain.


+1 for A.

Stimulus :
Tow different surveys of the park’s wildlife were conducted before the recent property development bordering a national park . The latter states that the amount of wildlife in the park actually increased over the intervening decade. Hence, the property development did not hurt the park’s wildlife.


(A) While both surveys found the same species of animals in the park, the more recent survey found greater numbers of animals belonging to each species. --> Correct, considering each species of wildlife and the change within the species shows that the number has increased for wildlife for each species, hence strengthener
(B) The more recent survey was taken in the summer, when the diversity of wildlife in the park is at its greatest. --> Weakener
(C) Migration of wildlife into the park from the adjacent developing areas has increased animal populations to levels beyond those that the resources of the park could have supported a decade ago. --> Irrelevant
(D) The most recent techniques for surveying wildlife are better at locating difficult-to-find animals than were older techniques. --> Weakener
(E) The more recent survey not only involved counting the animals found in the park but, unlike the earlier survey, also provided an inventory of the plant life found within the park. --> Irrelevant

Hence, A.
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Re: New evidence indicates that recent property development bordering a na  [#permalink]

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New post 27 Jul 2018, 09:20
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A great problem to demonstrate how reasoning works in a typical strengthening question!

Conclusion:

... in a national park the amount of wildlife increased over the decade in which development took place next to the park...AND...the park's resources can support its current wildlife populations without strain.
Akela wrote:
New evidence indicates that recent property development bordering a national park has not adversely affected the park 's wildlife. On the contrary, a comparison of the most recent survey of the park's wildlife with one conducted just prior to the development shows that the amount of wildlife has in fact increased over the intervening decade. Moreover, the park's resources can support its current wildlife populations without strain.

Which one of the following, if true, most strengthens the argument?

(A) While both surveys found the same species of animals in the park, the more recent survey found greater numbers of animals belonging to each species.
Mentions an increase of wildlife. Mentions no change in the technique of measurement and it is on the same page as the passage - context wise.

(B) The more recent survey was taken in the summer when the diversity of wildlife in the park is at its greatest.
This would make the survey not the same for both the cases. Does not strengthen the conclusion.

(C) Migration of wildlife into the park from the adjacent developing areas has increased animal populations to levels beyond those that the resources of the park could have supported a decade ago.
This means the wildlife increase was due to development in the adjoining areas, goes opposite to the conclusion drawn in the passage above. Clearly, doesn't strengthen.

(D) The most recent techniques for surveying wildlife are better at locating difficult-to-find animals than were older techniques.
This would make the survey technique not the same for both the surveys done. Hence, does not strengthen the conclusion.

(E) The more recent survey not only involved counting the animals found in the park but, unlike the earlier survey, also provided an inventory of the plant life found within the park.
Same error as (D).
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Re: New evidence indicates that recent property development bordering a na &nbs [#permalink] 27 Jul 2018, 09:20
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