Give examples of non-biodegradable substances.

Non-biodegradable substances are materials that do not break down easily through natural processes and persist in the environment for long periods.

Common examples include plastics such as plastic bags, bottles, and packaging materials, which can take hundreds of years to decompose. Glass is another example, as it does not degrade naturally and remains unchanged for a very long time.

Metals like aluminum cans and iron scraps are also non-biodegradable, although they may corrode slowly over time. Synthetic chemicals such as pesticides and detergents can also resist natural decomposition and accumulate in the environment.

These examples highlight the long-lasting nature of non-biodegradable substances and their potential to cause environmental pollution if not managed properly.