State whether artificial silk is an animal fibre or a plant fibre.

Answer

**Step-by-Step Solution:**

1. **Understanding Silk Types**: There are two main types of silk: natural silk and artificial silk. Natural silk is derived from silkworms, making it an animal fiber.

2. **Identifying Artificial Silk**: Artificial silk, also known as rayon, is not derived from animals. Instead, it is produced from plant materials.

3. **Source of Artificial Silk**: The primary source of artificial silk is wood pulp, which is a plant-based material. This wood pulp is processed to extract cellulose, a carbohydrate.

4. **Classification of Artificial Silk**: Since artificial silk is made from plant materials (wood pulp and cellulose), it is classified as a plant fiber.

5. **Conclusion**: Therefore, artificial silk is not an animal fiber; it is a plant fiber.

**Final Answer**: Artificial silk is a plant fiber.

---