Non-Biodegradable

1. Check whether microbes can decompose it. 2. If not, classify it as non-biodegradable. 3. Mention long persistence. 4. Add an environmental effect.

Draw a landfill or waste pile showing plastic, glass, and other persistent waste remaining in the environment.

A common wrong answer is to say paper and plastic are both non-biodegradable because both are waste. That is wrong because paper is biodegradable.

Non-biodegradable substances are materials that microorganisms cannot break down easily or quickly.

Non-biodegradable substances are materials that microorganisms cannot break down easily or quickly. Non-biodegradable = not broken down quickly by microorganisms; it remains for a long time. A plastic bottle left in a landfill may remain there for many years without natural decomposition.

Materials like plastic, glass, and many synthetic chemicals stay in the environment for a long time. Because they do not decompose rapidly, they can accumulate in soil, water, and landfills. This makes their careful use and disposal very important. Non-biodegradable = not broken down quickly by microorganisms; it remains for a long time. If a plastic carry bag is thrown on open ground, it may break into smaller pieces, but it does not turn into simple natural substances quickly. So it is non-biodegradable. Classify waste, explain why some materials persist, or discuss environmental problems caused by persistent waste. A common wrong answer is to say paper and plastic are both non-biodegradable because both are waste. That is wrong because paper is biodegradable.