Differentiate between biodegradable and non-biodegradable substances.
Give examples.

Explanation

### Step-by-Step Solution:

1. **Definition of Biodegradable Substances**:
- Biodegradable substances are materials that can be broken down into simpler substances through biological processes, primarily by microorganisms such as bacteria and fungi.

2. **Definition of Non-Biodegradable Substances**:
- Non-biodegradable substances are materials that cannot be broken down or decomposed by microorganisms. They remain in the environment for a long time without undergoing any significant change.

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