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Electric bug zappers, which work by attracting insects to light, are

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Electric bug zappers, which work by attracting insects to light, are  [#permalink]

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New post 26 Dec 2018, 09:04
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Question Stats:

86% (01:22) correct 14% (02:02) wrong based on 66 sessions

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Electric bug zappers, which work by attracting insects to light, are a very effective means of ridding an area of flying insects. Despite this, most pest control experts now advise against their use, recommending instead such remedies as insect-eating birds or insecticide sprays.

Which one of the following, if true, most helps to account for the pest control experts’ recommendation?

(A) Insect-eating birds will take up residence in any insect-rich area if they are provided with nesting boxes, food, and water.
(B) Bug zappers are less effective against mosquitoes, which are among the more harmful insects, than they are against other harmful insects.
(C) Bug zappers use more electricity but provide less light than do most standard outdoor light sources.
(D) Bug zappers kill many more beneficial insects and fewer harmful insects than do insect-eating birds and insecticide sprays.
(E) Developers of certain new insecticide sprays claim that their products contain no chemicals that are harmful to humans, birds, or pets.

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Re: Electric bug zappers, which work by attracting insects to light, are  [#permalink]

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New post 26 Dec 2018, 11:01
Electric bug zappers, which work by attracting insects to light, are a very effective means of ridding an area of flying insects. Despite this, most pest control experts now advise against their use, recommending instead such remedies as insect-eating birds or insecticide sprays.

Which one of the following, if true, most helps to account for the pest control experts’ recommendation?

(A) Insect-eating birds will take up residence in any insect-rich area if they are provided with nesting boxes, food, and water.( Does not help)
(B) Bug zappers are less effective against mosquitoes, which are among the more harmful insects, than they are against other harmful insects.( may not be effective for mosquitoes but effective against other insects)
(C) Bug zappers use more electricity but provide less light than do most standard outdoor light sources.(doesn't help)
(D) Bug zappers kill many more beneficial insects and fewer harmful insects than do insect-eating birds and insecticide sprays.( Yes , it gives us the reason to use other methods)
(E) Developers of certain new insecticide sprays claim that their products contain no chemicals that are harmful to humans, birds, or pets.( In favour of insecticide sprays)

Will go with choice D

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Re: Electric bug zappers, which work by attracting insects to light, are   [#permalink] 26 Dec 2018, 11:01
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Electric bug zappers, which work by attracting insects to light, are

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