Question

What is biodegradable and non biodegrdable wastes? Give example for each. [3 MARKS]

Answer 1

Each point: 1.5 Mark

1. Some wastes may be broken down by biological processes (saprophytes like fungi and bacteria) and this waste is called biodegradable. Examples: plant and animal waste, vegetable peels etc.
2. Some of this waste will not be broken down by biological processes and this waste is called non-biodegradable. Examples: polythene bags, plastics, metal objects etc. Non Biodegradable substances can be harmful to the environment.