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Science · 2023 · 2 marks
CBSE 2023 · Region 5 · Set 3 · Q25
What is the difference between biodegradable and non-biodegradable substances? List two methods of safe disposal of biodegradable domestic waste.
What is the difference between biodegradable and non-biodegradable substances ? List two methods of safe disposal of biodegradable domestic waste.
Marking-scheme solution
| Biodegradable | Non-biodegradable |
| - Substances that can be broken down by biological processes. | -Substances that cannot be broken down by biological processes . |
Safe Disposal:
(a) Composting
(b) Putting in the green coloured bins.
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