The GATE Grind

GATE 2021 ES – Question 16

Solid and Hazardous Waste Management · Integrated Solid Waste Management · 1 mark · Multiple choice

Choose integrated waste-management priority from highest to lowest.

  1. Reduce>reuse/recycle>energy recovery>landfill
  2. Reuse/recycle>reduce>energy recovery>landfill
  3. Reduce>energy recovery>reuse/recycle>landfill
  4. Reduce>reuse/recycle>landfill>energy recovery

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Correct answer: (A) Reduce>reuse/recycle>energy recovery>landfill

Explanation

Preventing waste conserves materials first. Reuse and recycling retain material value next;energy recovery follows, and disposal is last. Therefore **A** is the conventional hierarchy. Moving landfill ahead of recovery or prevention below recycling reverses that priority.

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