TGPSC Group-I 2023 · Question 39 of 136

Match the following : A. Electrostatic precipitator : Particulate matter B. Catalytic converter : Carbon monoxide and nitrogen oxides C. Terror of Bengal : Water hyacinth (Eichhornia crassipes) D. Biochemical oxygen demand : Polluted water (BOD) Identify the correctly matched pairs :

Environment

Answer: C. A, C and D only

Per the official preliminary master key, A, C and D are correctly matched.

Source: TGPSC Group-I Preliminary Test 2023 official question paper (held 11 Jun 2023)

Practice the full TGPSC Group-I 2023 paper

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TGPSC Group-I 2023 · Question 39 of 136

Environment

Per the official preliminary master key, A, C and D are correctly matched.

Source: TGPSC Group-I Preliminary Test 2023 official question paper (held 11 Jun 2023)

Practice the full TGPSC Group-I 2023 paper

Timed test with all 136 questions, just like the real exam.