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Each year red-winged blackbirds stop in a certain region of [#permalink]
29 Dec 2004, 01:27
50% (02:45) correct
50% (01:29) wrong based on 5 sessions
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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.
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.
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. please clarify
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.