– silk
Fill in the blanks
2.______is one of the cheapest natural fibres.
4. The process of immersing the bundles of jute stem in water for fewdays is called ———-
6————-fibre has shimmering appearance.
7. The ———is boiled in water to obtain the silk fibre.
Explanation:
The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. … The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors.
Answer:
1. jute
2. retting
3. silk
4. cocoons
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