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  9. Q86

UKPSC PCS 2025 · Question 86 of 150

Match the items given in Column-I and II: Column-I: A. Biomagnification, B. Electrostatic precipitation, C. Landfills, D. Stratosphere; Column-II: 1. Synthesis of ozone, 2. Solid waste, 3. Concentration build-up at successive trophic levels, 4. Particulate matter

Environment

  1. A3, 4, 2, 1Correct
  2. B1, 2, 3, 4
  3. C2, 1, 4, 3
  4. D4, 3, 1, 2

Answer: A. 3, 4, 2, 1

Explanation

Biomagnification is the concentration build-up across trophic levels (3), electrostatic precipitators remove particulate matter (4), landfills handle solid waste (2), and ozone is synthesised in the stratosphere (1).

Source: UKPSC Combined Upper PCS Prelims 2025 GS (Paper-I) held 29-Jun-2025, Series-A (SDJ), via teachingninja.in; answers from UKPSC provisional answer key Series A (prepp.in)

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