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# Each year red-winged blackbirds stop in a certain region of

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Each year red-winged blackbirds stop in a certain region of [#permalink]

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29 Dec 2004, 01:27
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Each year red-winged blackbirds stop in a certain region of Midland Province on their spring and fall migrations. In the fall, they eat a significant portion of the provinceâ€™s sunflower crop. This year Midland farmers sought permits to set out small amounts of poisoned rice during the blackbirdsâ€™ spring stop in order to reduce the fall blackbird population. Some residents voiced concern that the rice could threaten certain species of rare migratory birds. Nevertheless, the wildlife agency approved the permits.

Which of the following, if true, most helps to justify the wildlife agencyâ€™s approval of the permits, given the concerns voiced by some residents?

A. In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.

B. The poison that farmers want to use does not kill birds but rather makes them incapable of producing viable eggs.

C. Since rice is not raised in Midland Province, few species of birds native to the province normally eat rice.

D. Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined.

E. The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.
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29 Dec 2004, 07:15
A,D,E do not help C- talks about "Native" birds where as the question is talking about "migratory" birds..
B seems to be the answer
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29 Dec 2004, 07:23
I will go with B too, but all the answer choices are somewhat weak.
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29 Dec 2004, 18:22
A) is out of the scope
C) we have no evidence of anything mentioned in this answer choice
D) irrelevant
E) will in fact if true weaken the argument

therefore answer choice B is correct.
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30 Dec 2004, 12:41
Concerns voiced by some residents - Poisoned rice could threaten certain species of rare migratory birds.
'B' - If the rare migratory birds are incapable of producing viable eggs - the concerns voiced by some residents are valid.
How will this justify the wildlife agency's approval.
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30 Dec 2004, 13:12
B means that the rare migrating species of birds are in danger. So, agencies decision is not justified given the concerns voiced by some residents. so, B is out.

E is out too since E means the birds (both) won't recognize the poison and they will eat the rice. hence it weakens the approval.

Only choice is A.

Last edited by umasudha on 30 Dec 2004, 21:43, edited 2 times in total.
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30 Dec 2004, 21:28
Excuse me,

the OA is A

But I really don't know why ?

thanks
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31 Dec 2004, 11:35
I am in favor of 'A'

Can you please explain why you chose A?
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31 Dec 2004, 19:47
Pick A.

A. In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.

=> That the blackbirds will be the firs to feed on all the poisoned rice and so no other migratory birds will be affected. Possible choice.

B. The poison that farmers want to use does not kill birds but rather makes them incapable of producing viable eggs.

=> If rare migratory birds eat the rice they cannot produce offsprings as the eggs are not viable. This is not a good thing. So definitely NO.

C. Since rice is not raised in Midland Province, few species of birds native to the province normally eat rice.

=> we are not talking about native birds but about rare migratory birds, so Out of scope.

D. Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined.

=> Does not address the issue of the concern raised by residents. So, NO

E. The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.

=> Does not address the issue of the concern raised by residents. So, NO
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31 Dec 2004, 21:17
kdhong, I think gayathri has beat me to it - I had same reasoning gayathri's. let me know if you need more clarification
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05 Jan 2005, 07:32
gayathri wrote:
Pick A.

A. In the region where the red-winged blackbirds stop, they are the first birds to be present in the spring.

=> That the blackbirds will be the firs to feed on all the poisoned rice and so no other migratory birds will be affected. Possible choice.

B. The poison that farmers want to use does not kill birds but rather makes them incapable of producing viable eggs.

=> If rare migratory birds eat the rice they cannot produce offsprings as the eggs are not viable. This is not a good thing. So definitely NO.

C. Since rice is not raised in Midland Province, few species of birds native to the province normally eat rice.

=> we are not talking about native birds but about rare migratory birds, so Out of scope.

D. Without the permit, any farmers shown to have set out poison for the blackbirds would be heavily fined.

=> Does not address the issue of the concern raised by residents. So, NO

E. The poison that farmers got approval to use has no taste or smell that would make it detectable by birds.

=> Does not address the issue of the concern raised by residents. So, NO

Thanks gayathri

that is the only explanation.
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05 Jan 2005, 12:33
"A" for me too. Same reason as gayatri's.
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05 Jan 2005, 21:45
i can see whay it is A. good explanation guys. btw where did you get this question from?
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28 Jul 2010, 16:02
That the red-winged blackbirds are the first birds to come in the spring, does not mean that other migratory birds can be poissened after that.
I dont understand why A is correct.
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31 Jul 2010, 12:09
IMO A.
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16 Aug 2010, 11:06
Good explanation given by Gayathri!!
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16 Aug 2010, 14:08
+1 A
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16 Aug 2010, 21:36
No doubt the OA should be A. A prevents the timeline from being questioned - Is the other birds going to eat poison before blackbird ?
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17 Aug 2010, 13:44
Even if the red-winged blackbirds are the first to stop in the spring, what is the guarantee that the red-winged blackbirds will eat all the posioned rice and there will be no rice left for any other birds.

All other options are bad but this option is not a very strong contender either.
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18 Aug 2010, 02:27
I THOUGHT ANS SHLD BE B
Re: CR0424   [#permalink] 18 Aug 2010, 02:27

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