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The widespread use of insecticides has

  • A.reduced the number of wild animals
  • B.caused imbalance in the relationship between living beings and their environment
  • C.eliminated diseases by killing mosquitoes and flies
  • D.caused biological hazards

Answer: B

Correct answer: caused imbalance in the relationship between living beings and their environment

The passage names two prices paid for insecticides: dwindling wildlife and disturbances in the relation of living things and their surroundings. The first option takes only half of that pair, and the second reverses the passage, which treats insecticides as a cost rather than a cure.

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