D. LONG-ANSWER QUESTIONS: Answer these questions,
1. what kind of climate and soil does cotton required to give a good yield ?
2. Name and explain in one sentence each the steps involved in converting cotton growing on plants to cotton cloth.
3. What advantages does cotton have over synthetic cloth?
4. Outline the process of making woollen clothes.
5. How is silk obtained?
6. How is jute fibre made from the jute plant?
Answers
Explanation:
1.Cotton is a warm season crop that needs moderate rainfall. It requires fertile and clayey soil that can hold moisture. The best suited soil for growing cotton is black soil which is found in western and southern India
2.Extraction: Cotton is plucked, cleaned and impurities are removed at first.
Spinning: Bales of cotton fibre converted into yarns( threads).
Weaving: Yarns are made into fabric by interlacing.
Bleaching: Fabric is bleached followed by a wash
3.1) Cotton is a breathable fabric material which gives more comfort than the synthetic fibres. 2) Washing and removing any stain from cotton fabric is lot more easier than the synthetic fibres. 3) High quality cotton fabric is lot more durable than the synthetic fibres.
4.The process involves following steps : Shearing → Grading → Sorting →Cleaning → Scouring → Carding → Spinning → Weaving → Finishing. Sheep are sheared then fleece is broken up according to the quality and sorted into sections according to quality
5.The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).
6.The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. The fibers are first extracted by retting. The retting process consists of bundling jute stems together and immersing them in slow running water.
Answer:1. Cotton is a warm season crop that needs moderate rainfall. It requires fertile and clayey soil that can hold moisture. The best suited soil for growing cotton is black soil which is found in western and southern India.
2.The steps are as follows:
Extraction: Cotton is plucked, cleaned and impurities are removed at first.
Spinning: Bales of cotton fibre converted into yarns( threads).
Weaving: Yarns are made into fabric by interlacing.
Bleaching: Fabric is bleached followed by a wash.
3.1) Cotton is a breathable fabric material which gives more comfort than the synthetic fibres. 2) Washing and removing any stain from cotton fabric is lot more easier than the synthetic fibres. 3) High quality cotton fabric is lot more durable than the synthetic fibres.
4.The process involves following steps : Shearing → Grading → Sorting →Cleaning → Scouring → Carding → Spinning → Weaving → Finishing. Sheep are sheared then fleece is broken up according to the quality and sorted into sections according to quality.
5.The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).
6.The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. The fibers are first extracted by retting. The retting process consists of bundling jute stems together and immersing them in slow running water.
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