Verified answer

Answer:-

1.) Animal fibers consist of mainly of keratin protein:-

Ans:- True

Reason:- keratin is mainly found in vertebrates. Keratin is a fibrous structural protein found in animal cells and used to form specialized tissues.

2.) All the fibers need not to be processed before they are used.

Ans:- False

Reason:-Developing fibers with improved tensile properties is important because fiber breakage during processing from field to yarn can impart imperfections

3.) Silk is the natural animal fiber:-

Ans:- True

Reason:-Silk is obtained from silkworms, hence it can be said to be a natural animal fiber.

4.) Rearing silk worm on a commercial scale is sericulture:-

Ans:- True

Reason:-Sericulture, is the cultivation of silkworms to produce silk. Although there are several commercial species of silkworms.

5.)Yarn is not the processed wool.

Ans:- False

Reason:- The yarn is sent to process wool from the sheep to the fabric are: shearing, cleaning and scouring, grading and sorting, spinning, and many more.

6.)Wool is a good conductor of heat:-

Ans:- False

Reason:- Wool is a bad conductor of heat.

7.)Silkworm feed on rose leaves:-

Ans:- False

Reason:- Silkworms only feed from the leaves of mulberry trees.

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