admin B). false. Europe is projected to make up a much larger percentage of the world population in 2100 than it did in 1800. Answer: Bed-sheets, blankets, curtains, table clothes, towels and dusters. FALSE 3. d) The process of removing seed from cotton is … Question 26. A) both countries The fruits of the cotton plants called cotton bolls are about the size of lemons. The infant mortality rate, Ch.5 Q2. (C) Jute is the outer covering of coconut. The world is already past a crisis point and is already overpopulated B). The total fertility rate in each regionB). Indicate whether the following statements are True or False. A synthetic fibre resembling wool is acrylic. When a single yam is used, the fabric is prepared by knitting. Answer: The cotton wool is obtained from cotton plants. Africa is projected to make up a much larger percen Ang Australia ang tanging kontinenteng natatakpan ng yelo.10. Classify the following fibers as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. B) people in both countries experienced trauma due to the use of government force A). State whether the following statements are true or false: a) Yarn is made from fibers. Answer: It appears that in those days people used the bark and big leaves of trees or animal skin and furs in place of clothes. Answer: Wool is obtained from the fleece (hair) of sheep, goat, yak etc. (adsbygoogle = window.adsbygoogle || []).push({}); © Copyright 2020, All Rights Reserved B). Silk fibre is obtained from the stem of a plant. Jute is the outer covering of coconut. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. C). True; False, synthetic fibres melt on heating; True ; False, most of the plastics are non biodegradable. (ii) Synthetic fibres do not melt on heating. Share Share by Sarammamoos. For example, polyester, nylon, and acrylic etc. C) Stage 3 Embed. …, ang tawag sa bahagi ng daigdig na pinagbubuklod ng magkatulad nakatangiang pisikal o kultural.3. Answer 25. Wool, cotton, silk and jute are natural fibre. speakers? It is done by hand or by machines. From the cotton bolls cotton is picked by hands. Explanation: Nylon and polyester are synthetic fibre. Linen fibre is obtained from hemp plant. c) Jute is the outer covering of coconut. The third stage in the history of clothing began in the late 19th century with the development of man-made or synthetic fibres like rayon, nylon and polyester. B) Stage 1 tage of the world population in 2100 than it did in 1800. Answer: When people began to settle in agricultural communities then they learnt to weave twigs and grass into mats and baskets. Theme. True: Silk is a natural fiber, Jute is a natural fibre, wool is a natural fibre, False: Nylon is a natural fibre, Poly ester is a natural fibre, Terylene is a natural fibre., True or false. Jute is properly known as the golden fibre. FALSE 6. A). After maturing, the bolls burst open and seeds covered with cotton fibres can be seen. The cotton plants are grown in fields. d) The process of removing seed from cotton is … State whether the following statements are true or false. d) The process of removing seed from cotton is called ginning. Answer: False. NCERT Solution for Class 6 Science Chapter, NCERT Solutions for Class 6 Science Solutions, 11th CBSE NCERT Chemistry Mid Term Exam Set B (2019-20), Wastewater Story: 7th Class NCERT CBSE Science Ch 18, Forests: Our Lifeline – 7th NCERT CBSE Science Ch 17, Water: A Precious Resource – 7 Class CBSE Science Ch 16, Light: 7th Class NCERT CBSE Science Chapter 15. Natural Fibres: wool, cotton, silk, jute. True/False; Ancient Egyptians used both cotton and linen. Answer: The natural fibre absorbs sweat, gives cooling effect and comfort in any season. This brings the fibres together to form yarn. (iii) It is risky to wear synthetic clothes while working in the kitchen. 582 Views. The number of males in each age gro More. The looms are either hand operated or power operated. 1. C). Leave a comment Natural fibres: Synthetic fibres: Wool Nylon Cotton Polyester Silk Jute Q 2. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. Spinning is a process of making fibres. 1. What seems to have been the message the students have repeatedly gotten from guest D). Most of the plastics are biodegradable. Answer: Fabrics are prepared from the yarns by weaving or knitting. (B) Spinning is a process of making fibres. Answers: State whether ‘True’ or ‘False’. true or false. Question 2: State whether the following statements are true or false: a) Yarn is made from fibres. …. The stems rot (the process is called retting) and fibres are separated by hand. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Natural Fibres: wool, cotton, silk, jute. These MCQ Questions on Synthetic Fibres and Plastics Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Answer: When we pull a yarn from a torn sock then a single yarn, gets pulled out continuously as the fabric gets unraveled. Tibatawag na topograpiya ang pisikal na katangian ng isang lugar o rehiyon.5.