Q.4. Answer: Synthetic fibres have replaced natural fibres for most uses. The DASH diet and heart health. and do not require fiber formation or reformation are classed as natural fibers. Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 3 Synthetic Fibres and Plastics. Several components of the DASH diet have been linked to improved cholesterol level: getting lots of fiber (in this case from fruits and vegetables, whole grains, nuts, and beans), eating fish and leaner cuts of meat, and limiting sweets and refined carbohydrates. 800.382.6164 The performance of the natural fibre composites depends directly on the fibres counting, length, shape, arrangement and also the interfacial adhesion wi th the matrix [4]. The DASH diet is rich in grains, fruits, vegetables and low-fat dairy products. Many natural fibres come from plants and hence plants need to be cut to obtain these fibres. Combing is a method to prepare woollen fibres for spinning the yarn. The DASH diet also limits sodium to between 1,500 and 2,300 milligrams a day. B&I offers the finest selection of finishes to customize your molded dash kit and dash kit with. 21.Synthetic fibers are more durable than natural fiber. (5) Combing. From real wood to real carbon fiber to camo and even your own paint-code. It is low in total fat, saturated fat, and cholesterol. The natural fibers are vegetable, animal, or mineral in origin. DASH Eating Plan The Dietary Approaches to Stop Hypertension (DASH) eating plan is a way of eating that helps lower high blood pressure. What are natural fibres? Some of the natural fibers like vegetable fibers are obtained from the various parts of the plants. Ans. The fibres obtained from plants and animals are called natural fibres. The white woollen fibres obtained by sorting can be dyed in different colours. This eating plan also includes whole grain products, fish, poultry and nuts. All fibers which come from natural sources (animals, plants, etc.) It has resulted in reducing our dependency on natural fibres. 20.Natural fiber has a great demand as humans wear. This is done by using combs having metal teeth. Recommended Videos Fibres that are obtained from the plants are known as plant fibres. This latest study adds to established research linking the DASH diet with heart health. The natural fleece or hair of sheep (or goats) is white, brown or black in colour. For example, cotton from cotton bolls, jute from jute plant, silk from cocoon of silkworm and wool from hair of animals like sheep or goat. Q.3. Explain with examples. On the other hand, fibres that are obtained from the animals are known as animal fibres. Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. For example, a 2001 study in The New England Journal of Medicine found that limiting sodium and following a DASH diet resulted in even bigger reductions in blood pressure than doing DASH alone. 21.Comperatively less durable than synthetic fiber. It has helped in conservation of forests. They are provided by nature in ready-made form. Examples of natural fibres are cotton and jute whereas examples of synthetic fibres are: nylon, polyester, etc. It limits total fat, trans fat and saturated fat, and provides plenty of fiber, potassium, calcium and magnesium. Students can solve NCERT Class 8 Science Synthetic Fibres and Plastics MCQs Pdf with Answers to know […] It is rich in fruits, vegetables, and fat free or low fat dairy products. 20.Synthetic fiber is widely used in every day life except humans wear. What are synthetic fibres? 22.The use of natural fibers are limited than synthetic fiber. Ans. 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