Classify the following into different changes.
(a) Making of dough from flour
(b) Digestion of food
(c ) Germination of seeds
(d) Burning of paper

Explanation

To classify the given changes, we will analyze each one based on their characteristics such as whether they are physical or chemical changes, reversible or irreversible, and if they are desirable or not.

### Step-by-Step Solution:

1. **Making of dough from flour**:
- **Type of Change**: Physical Change
- **Reversibility**: Irreversible (once made, you cannot go back to just flour)
- **Speed**: Slow Change
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