Paper 1 · People, Development and Environment
UGC NET June 2024 Re-Exam (21.08.2024) Shift-II
Burning of solid waste, such as cans, batteries, plastic etc., generates which of the following? Choose the correct answer from the options given below.
- 1. Microplastics
- 2. Chlorofluorocarbons (CFCs)
- 3. Dioxins
- 4. Polychlorinated biphenyls (PCBs)
- 5. Halons
A1, 2, 3 and 4 only
B1, 3 and 4 only ✓ Correct
C2, 4 and 5 only
D2, 3 and 5 only
Correct answer: (B) 1, 3 and 4 only — Burning solid waste generates microplastics, dioxins and PCBs, so the answer is 1, 3 and 4.
Explanation
★Burning solid waste generates microplastics, dioxins and PCBs, so the answer is 1, 3 and 4.
★Burning mixed solid waste releases many harmful substances.
★Tiny plastic residues become microplastics, so statement 1 is correct.
★Incomplete burning of chlorinated waste produces dioxins, so statement 3 is correct.
★It also produces polychlorinated biphenyls, so statement 4 is correct.
★CFCs and halons come from refrigerants and fire suppressants, not this burning, so statements 2 and 5 are excluded.
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