Give examples of biodegradable substances.

Biodegradable substances include materials that can be naturally broken down by microorganisms into simpler, harmless components. These substances are typically derived from plant or animal sources and decompose relatively quickly under suitable environmental conditions.

Common examples include food waste such as fruit and vegetable peels, leftover food, and organic kitchen waste. Natural materials like paper, cardboard, wood, cotton, jute, and leaves are also biodegradable.

Animal-based waste such as manure and dead organisms also fall under biodegradable substances, as they are easily decomposed by bacteria and fungi.

These examples highlight how biodegradable substances can be safely returned to the environment without causing long-term pollution, making them essential for eco-friendly waste management.