11.3. Questions

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Answer the following questions.

1. What type of material are all papers made out of?
2. What is the most common raw material used in paper?
3. How are wasps connected to paper?
4. Why is wood used in saunas?
5. Why is wood used in buildings?
6. Where was wood used centuries ago?
7. What kinds of fiber plants do you know?
8. What are the disadvantages of cotton?
9. What kinds of animal fibers do you know?
10. What kinds of invertebrates produce fibers?

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