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Question

The author's argument that destroying bot-flies and mosquitoes would be a beneficial action is most weakened by all of the following except __________.
  1. parasites have an important role to play in the regulation of populations
  2. the pests themselves are part of the food chain
  3. the elimination of any species can have unpredictable effects on the balance of nature
  4. these insects have been introduced to the area by human activities
  5. elimination of these insects would require the use of insecticides that kill a wide range of insects

A
parasites have an important role to play in the regulation of populations
B
the pests themselves are part of the food chain
C
these insects have been introduced to the area by human activities
D
elimination of these insects would require the use of insecticides that kill a wide range of insects
E
the elimination of any species can have unpredictable effects on the balance of nature
Solution
Verified by Toppr

Here options A, B, C and E give reasons why destroying these insects might be a mistake. D is the correct answer because it suggests that eliminating these insects might not be wrong, since they are not even natural inhabitants of the area. So, D is the correct answer.

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