Answer:

Biodegradable :-Dry leaves , left-over food

Non-biodegradable:- metal cans , DDT​

Explanation:

• A biodegradable substance can be defined as a material which can be decomposed by microorganisms or decomposers and not be adding to any type of pollution.
• Biodegradable material contains food waste like vegetable and fruit peels, dead plants and animals, egg shells, chicken, garden waste paper materials, etc.
• Waste that cannot be decomposed by the biological ways is called the Non-biodegradable wastes.
• Non-biodegradable things include of plastics, polystyrene, plastic, metals, and aluminum cans, toxic chemicals, paints, tyres, etc.