Question:hard

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

Insecticides exist for one clear purpose, so the first blank should name that purpose directly, then the second blank should show the twist the sentence promises.

  1. aggravate, disintegrate and rectify all describe actions nobody actually intends when spraying insecticides, so each first blank choice fails immediately.
  2. Only "control" describes the real, intended purpose of using insecticides against pests.
  3. For the second blank, "resurgence" fits the well documented pattern where overused insecticides kill natural predators and let surviving pests multiply back.
  4. Modification, mobility and revival do not describe what happens to a pest population after chemical overuse.

Working blank by blank confirms option 4, control ... resurgence, is correct.

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