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11 Mar 2024, 09:37
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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81% (02:02) correct
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Which of the following most logically completes the argument?
Because Texas usually loses 5 percent of its cotton crop to insects, this year farmers there started spraying the pesticide malathion in order to eradicate the principal culprit, the boll weevil. Spraying killed 98 percent of boll weevils, but because malathion reduced populations of predators of the beet armyworm, that insect did more damage to the crop than the boll weevil ever has. Even so, the spraying program should not yet be halted, since _________.
A. a recovery of the boll weevil population would reduce the amount of food available to the beet armyworm
B. other regions that have successfully used malathion to reduce insect damage by eradicating boll weevils were not regions inhabited by the beet armyworm
C. the boll weevil population that survived the first year’s spraying is small enough that, even if spraying of malathion discontinued, it will never return to the size it had before the program
D. malathion has no effect on the beet armyworms that are directly exposed to it
E. complete eradication of the boll weevil requires only one further year of spraying, after which the populations of predators of the beet armyworms will quickly recover
GMAT-Club-Forum-9o1qqe00.png [ 106.34 KiB | Viewed 2240 times ]
Because Texas usually loses 5 percent of its cotton crop to insects, this year farmers there started spraying the pesticide malathion in order to eradicate the principal culprit, the boll weevil. Spraying killed 98 percent of boll weevils, but because malathion reduced populations of predators of the beet armyworm, that insect did more damage to the crop than the boll weevil ever has. Even so, the spraying program should not yet be halted, since _________.
A. a recovery of the boll weevil population would reduce the amount of food available to the beet armyworm
B. other regions that have successfully used malathion to reduce insect damage by eradicating boll weevils were not regions inhabited by the beet armyworm
C. the boll weevil population that survived the first year’s spraying is small enough that, even if spraying of malathion discontinued, it will never return to the size it had before the program
D. malathion has no effect on the beet armyworms that are directly exposed to it
E. complete eradication of the boll weevil requires only one further year of spraying, after which the populations of predators of the beet armyworms will quickly recover
Attachment:
GMAT-Club-Forum-9o1qqe00.png [ 106.34 KiB | Viewed 2240 times ]
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11 Mar 2024, 14:38
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Which of the following most logically completes the argument?
Because Texas usually loses 5 percent of its cotton crop to insects, this year farmers there started spraying the pesticide malathion in order to eradicate the principal culprit, the boll weevil. Spraying killed 98 percent of boll weevils, but because malathion reduced populations of predators of the beet armyworm, that insect did more damage to the crop than the boll weevil ever has. Even so, the spraying program should not yet be halted, since _________.
The passage presents some background information about Texas's cotton crop and insects.
It then states a conclusion:
the spraying program should not yet be halted
After the conclusion is "since __________."
In this type of context, "since" is an evidence marker. So, the answer choice that fills the blank and follows "since" must be evidence that supports the conclusion that precedes since, "the spraying program should not yet be halted."
A. a recovery of the boll weevil population would reduce the amount of food available to the beet armyworm
Since a reduction of the food available to the beet armyworm would presumably be good for the cotton crop, this choice indicates that a recovery of the boll weevil population would be good for the cotton crop.
The fact that a a recovery of the boll weevil population would be good for the cotton crop is not a reason not to halt spraying of malathion, which kills boll weevils.
Eliminate.
B. other regions that have successfully used malathion to reduce insect damage by eradicating boll weevils were not regions inhabited by the beet armyworm
The fact that regions that were successful in using malathion were different from Texas in that they were not inhabited by the beet armyworm is not a reason to continue spraying malathion in Texas. After all, the fact that successful use of malathion occurred under different circumstances is not a reason to believe doing the same thing would lead to success under the circumstances existing in Texas.
Eliminate.
C. the boll weevil population that survived the first year’s spraying is small enough that, even if spraying of malathion discontinued, it will never return to the size it had before the program
The fact that, even if spraying were discontinued, the boll weevil population would never return to its previous size is not a reason to continue spraying. It's a reason why it might work to halt spraying.
Eliminate.
D. malathion has no effect on the beet armyworms that are directly exposed to it
The fact that malathion has no effect on beet armyworms, a "pest," is not a reason not to halt spraying it.
Eliminate.
E. complete eradication of the boll weevil requires only one further year of spraying, after which the populations of predators of the beet armyworms will quickly recover
This choice supports the conclusion "the spraying program should not yet be halted."
After all, if this choice is true, then after another year of spraying, there boll weevil will be gone for good, at which point spraying could be halted permanently. The outcome of that approach would be that the boll weevil would be gone and the populations of predators of the beet armyworms would recover and take care of the beet armyworms as well.
Keep.
Correct answer: E
Because Texas usually loses 5 percent of its cotton crop to insects, this year farmers there started spraying the pesticide malathion in order to eradicate the principal culprit, the boll weevil. Spraying killed 98 percent of boll weevils, but because malathion reduced populations of predators of the beet armyworm, that insect did more damage to the crop than the boll weevil ever has. Even so, the spraying program should not yet be halted, since _________.
The passage presents some background information about Texas's cotton crop and insects.
It then states a conclusion:
the spraying program should not yet be halted
After the conclusion is "since __________."
In this type of context, "since" is an evidence marker. So, the answer choice that fills the blank and follows "since" must be evidence that supports the conclusion that precedes since, "the spraying program should not yet be halted."
A. a recovery of the boll weevil population would reduce the amount of food available to the beet armyworm
Since a reduction of the food available to the beet armyworm would presumably be good for the cotton crop, this choice indicates that a recovery of the boll weevil population would be good for the cotton crop.
The fact that a a recovery of the boll weevil population would be good for the cotton crop is not a reason not to halt spraying of malathion, which kills boll weevils.
Eliminate.
B. other regions that have successfully used malathion to reduce insect damage by eradicating boll weevils were not regions inhabited by the beet armyworm
The fact that regions that were successful in using malathion were different from Texas in that they were not inhabited by the beet armyworm is not a reason to continue spraying malathion in Texas. After all, the fact that successful use of malathion occurred under different circumstances is not a reason to believe doing the same thing would lead to success under the circumstances existing in Texas.
Eliminate.
C. the boll weevil population that survived the first year’s spraying is small enough that, even if spraying of malathion discontinued, it will never return to the size it had before the program
The fact that, even if spraying were discontinued, the boll weevil population would never return to its previous size is not a reason to continue spraying. It's a reason why it might work to halt spraying.
Eliminate.
D. malathion has no effect on the beet armyworms that are directly exposed to it
The fact that malathion has no effect on beet armyworms, a "pest," is not a reason not to halt spraying it.
Eliminate.
E. complete eradication of the boll weevil requires only one further year of spraying, after which the populations of predators of the beet armyworms will quickly recover
This choice supports the conclusion "the spraying program should not yet be halted."
After all, if this choice is true, then after another year of spraying, there boll weevil will be gone for good, at which point spraying could be halted permanently. The outcome of that approach would be that the boll weevil would be gone and the populations of predators of the beet armyworms would recover and take care of the beet armyworms as well.
Keep.
Correct answer: E
