Differentiate between biodegradable and non-biodegradable substances with the help of one example each. List two changes in habit that people must adapt to dispose non-biodegradable waste, for saving the environment.

Biodegradable substances are substances or materials that completely break down and decompose into natural elements in a short period of time after disposal.

Examples of Biodegradable materials are plant products, wood, paper, food waste, leaves, and remnants from the death of living creatures.

Non-biodegradable substances are substances or materials that do not break down completely or don't decompose naturally into simpler form to mix with the environment.

Examples of non-biodegradable materials are cans, metals, and chemicals used for agricultural and industrial purposes.

The changes that people must adapt to dispose of non-biodegradable waste, for saving the environment are:

(i) Household waste, chemical waste and hospital waste should be properly segregated and dispose of accordingly to low-lying areas known as landfill.

(ii) Broken or waste or dumped off plastic materials such as bowls, polythenes, cups, buckets etc. must be sent to plastic recycling factories.