Why rayon is called artificial silk?

Explanation

**Step-by-Step Solution:**

1. **Definition of Rayon**: Rayon is a type of synthetic fiber that is made from natural sources, primarily wood pulp.

2. **Chemical Treatment**: The process of making rayon involves chemically treating wood pulp. This treatment transforms the wood pulp into a fiber that can be spun into yarn and woven into fabric.

3. **Artificial Creation**: Rayon is referred to as "artificial" because it is not found in nature in its final form. Although it originates from a natural source (wood pulp), the chemical processes required to create rayon are man-made.

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