F. Short Answer Type Questions:
1. Explain the process of making yarn from fibres.
2. Why do we wear clothes?
3. Why do we use woollen clothes in winters?
4. List the world's main jute producing countries.
5. Why is the fabric made on powerloom cheaper ?
6. How can you classify fibres?
Answers
Answer:
Answer 1 Yarns are made up of thin strands called fibers. The process of making yarn from fibers is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibers together to form yarn.
Answer 2 We wear clothes to protect our body. Clothes keep us safe from heat, cold, rain, wind, and insect bites.
Answer 3 we wear woolen clothes in winter because woolen clothes have fine pores filled with air. Wool and air are both conductors of heat and thus keeps the body warm
Answer 4 India, China, and Bangladesh are the three major producers in the cultivation or production of jute fiber.
Answer 5 Power looms consumes less amount of electricity as they run by line shafting , hence cost of production is less and fabric formed is cheaper
Answer 6 Natural fibres can be classified according to their origin. The vegetable, or cellulose-base, class includes such important fibres as cotton, flax, and jute. The animal, or protein-base, fibres include wool, mohair, and silk. An important fibre in the mineral class is asbestos.
Answer:
2,3. answer
Explanation:
3.to safe from the cold wind we wear woollen clothes in winter.
2. we wear clothes to cover our body.