Question

In which of the following groups, all three are biodegradable substances?

• A. Waste leather, wood, spoiled food
• B. Aluminium foils, insecticides, radioactive waste
• C. Kitchen waste, plastic, polythene bag
• D. Glass object, leaves, wood

Answer 1

The correct option is A Waste leather, wood, spoiled food

The substances which can be broken down by the action of enzymes released by microorganisms (bacteria and fungi) into simpler and soluble substances are known as biodegradable substances. For example, vegetable wastes, spoiled food, domestic sewage, leather waste, kitchen waste, wood, etc. are biodegradable substances.