State whether the following statements are true or false :
Formation of manure from leaves is a physical change.

Explanation

To determine whether the statement "Formation of manure from leaves is a physical change" is true or false, we can analyze the nature of the change involved in the formation of manure.

### Step-by-Step Solution:

1. **Understanding Physical and Chemical Changes**:
- A **physical change** is a change that affects one or more physical properties of a substance. It is usually reversible and does not alter the chemical composition of the substance.
- A **chemical change**, on the other hand, involves a transformation that alters the chemical composition of the substance, resulting in the formation of new substances. This change is typically irreversible.

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