Question:

Fill in the blanks with the words that best fit the meaning of the sentence as a whole.

Unscrupulous use of chemical insecticides to the pests leads to pest .

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Think about the irony: insecticides meant to fight pests can end up backfiring.
Updated On: Jul 21, 2026
  • aggravate ... modification
  • disintegrate ... mobility
  • rectify ... revival
  • control ... resurgence
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The Correct Option is D

Solution and Explanation

The sentence describes an unintended, ironic outcome: using insecticides to fight pests results in the pests coming back.

  1. Option 1 (aggravate ... modification): Nobody uses insecticides to aggravate, or worsen, pests on purpose. This does not match the intended action.
  2. Option 2 (disintegrate ... mobility): Disintegrate means to break apart, which is an odd goal for pest control, and mobility does not describe a pest problem.
  3. Option 3 (rectify ... revival): Rectify means to correct, which does not apply to pests. Insecticides are not used to correct pests.
  4. Option 4 (control ... resurgence): Insecticides are used to control pests, and unscrupulous or careless use often causes pests to build resistance and return in greater numbers, a resurgence.

The correct choice is option 4, control ... resurgence, since it captures the irony of pest control backfiring.

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