Which of the following is NOT a category of waste generated by human beings in daily practice?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Radio-active waste
Option (1) Radio-active waste — Not a category of daily waste. Radioactive waste comes from nuclear power plants, not from the daily life of households; its safe disposal is a special problem.
Option (2) Bio-degradable waste — A category of daily waste. Food and paper waste, broken down by microbes.
Option (3) Plastic waste — A category of daily waste. Polythene bags and packaging from every home.
Option (4) Non-biodegradable waste — A category of daily waste. Glass, metals and plastics that microbes cannot break down.