State whether the following statements are True or False. If false, correct them.
Yak hair are not used to make woollen fabric.

Explanation

To determine whether the statement "Yak hair are not used to make woollen fabric" is true or false, we can analyze the information provided.

1. **Understanding the Statement**: The statement claims that yak hair is not used to make woollen fabric.

2. **Fact Check**: Yak hair is indeed used to make woollen fabric. Yaks have a thick coat of hair that helps keep them warm in cold climates. This thick hair traps air, which is a poor conductor of heat, thus providing insulation.

3. **Conclusion**: Since yak hair is used to make woollen fabric, the statement is false.

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