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CR: If the forest continues to disappear

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CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 04:07
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

23% (01:38) correct 76% (01:13) wrong based on 17 sessions
Please don't forget the explanation to. Thanks

“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.
Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?
(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction.
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 05:52
“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.


Assumption by the politician is that Deforestation is the only way in which forest disappears.
So politician to be false and biologist to be true, even after stopping deforestation the
disappeanace of the forest continues.

Straight B


Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?
(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction.
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 07:51
thanks
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 08:01
But I don't think B is consistent with the biologists claims. I will chooose D. What is the OA?
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 08:13
yea why not d?
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 08:26
B is not consistent with biologist's claim. (D) for me.
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 11:58
biologist never claimed deforestation is the only reason for the forest to be extinct.
It can also be forest fire for example.....
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Re: CR: If the forest continues to disappear [#permalink] New post 21 Mar 2008, 12:52
OA is B
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Re: CR: If the forest continues to disappear [#permalink] New post 23 Mar 2008, 07:26
I was stuck between B & E.

Picked E though. Any reason why not E ?
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Re: CR: If the forest continues to disappear [#permalink] New post 26 Aug 2010, 00:16
huntgmat wrote:
biologist never claimed deforestation is the only reason for the forest to be extinct.
It can also be forest fire for example.....


Thanks, I got it now.
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Re: CR: If the forest continues to disappear [#permalink] New post 17 Apr 2012, 03:25
“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.

Politician think that deforestation is the only way in which forest disappears

BIO: If DF continue, KE
POL: stop DF -> KS and this is the only way to do that

(A) Deforestation continues and the koala becomes extinct.
Agrees with BIO but we cannot say it disagrees with POL as it talks about something else
(B) Deforestation is stopped and the koala becomes extinct.
Clear agree with POL but how can we say it agree with BIO , we cannot say anything w.r.t. BIO as there is not info. In a way we can say that it DOES NOT AGREE as Defor has NO effect on extinction
(C) Reforestation begins and the koala survives.
No discussion on refor
(D) Deforestation is slowed and the koala survives.
Agree with BIO and not with POL
(E) Deforestation is slowed and the koala approaches extinction.
can't say it agree with BIO , it AGREE WITH POL

What is WRONG with D
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Re: CR: If the forest continues to disappear [#permalink] New post 03 Jun 2013, 21:47
Vavali wrote:
Please don't forget the explanation to. Thanks

“If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.
Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?
(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction.


OE:

Notice that the politician’s statement is much stronger than the biologist’s. The biologist says merely
that if deforestation continues then the koala will approach extinction. This can be diagrammed as
D—>E
where D stands for “deforestation continues” and E stands for “extinction.” In other words, ending
deforestation is a necessary condition for the koala’s survival. Now the politician says that if deforestation
stops then the koala will not approach extinction. This can be diagrammed as
~D—>~E
This is stronger because it declares that ending deforestation is sufficient for the koala to survive. You
should notice this as the fallacy of denying the premise. Look at choice (B). It stops deforestation yet the
koala still becomes extinct. This is not consistent with the politician’s statement since he claimed stopping
deforestation would prevent the koala’s extinction. But (B) is consistent with the biologist’s claim since he
said only that if deforestation continued then the koala would become extinct. He said nothing about the
case in which deforestation stops—the koala could still become extinct for other reasons. Remember, if the
premise of an if-then statement is false, then we know nothing about the conclusion. The answer is (B).
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Re: CR: If the forest continues to disappear   [#permalink] 03 Jun 2013, 21:47
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