Why should biodegradable and non-biodegradable wastes be discarded in two separate dust bins?

Biodegradable and non-biodegradable wastes should be discarded in separate dustbins because they require entirely different disposal and treatment methods:

1. Biodegradable wastes (like kitchen waste, fruit peels, and paper) can be broken down by microorganisms like bacteria and fungi into simple inorganic substances. These can be converted into useful compost to replenish the soil.
2. Non-biodegradable wastes (like plastics, glass, and metal strips) cannot be broken down by biological processes. They persist in the environment for a long time and can harm ecosystem members. Separating them allows these materials to be sent directly for recycling or safe engineering disposal without contaminating organic waste.