Question
Why are some substances biodegradable and some non-biodegradable?
Solution
Substances which can be broken down by the biological processes are biodegradable. These substances are broken down into simpler molecules with the help of enzymes secreted by the bacteria and other saprophytes over a period of time.
Non-biodegradable substances are those substances which cannot be broken down by the biological processes. They are inert and persist in the environment for a long time and may even harm the ecosystem.
Non-biodegradable substances are those substances which cannot be broken down by the biological processes. They are inert and persist in the environment for a long time and may even harm the ecosystem.