Which of these are organic substances manures or fertilisers?

Explanation

### Step-by-Step Solution:

1. **Understanding Manures**: Manures are substances that are naturally formed from the decomposition of organic matter. They can come from animal dung, plant residues, or composted materials.

2. **Identifying Organic Substances**: Organic substances are those that are derived from living organisms and primarily consist of carbon, hydrogen, and oxygen. Since manures are derived from natural sources, they are classified as organic substances.

3. **Examples of Manures**: Common examples of manures include:
- Animal dung (e.g., cow dung)
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