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

Those substances which can be broken down into simpler forms by the nature is referred to as biodegradable substance. Example: Vegetable waste, etc.
Those substances which can not be broken down into simpler forms via the nature is referred to as non-biodegradable substance. Example: Glass, plastic, etc
Two habits which people can adopt to dispose off non-biodegradable waste for saving the environment include:
Segregating the biodegradable and non-biodegradbale substances by carefully disposing the waste in two separate or respective dustbins.
Reuse of substances such as polybags, glass bottles etc.
Final Answer:
Hence, biodegradable and non-biodegradable substances are defined with examples.