Jute plants yield fibres of relatively high length. The uniformity of the fibres obtained from the jute plant also makes them highly desirable commercially. Jute fibres are relatively cheap and therefore affordable by many people. Some fibres such as cotton, jute, silk and wool obtained from plants and animals are called: (a) synthetic fibres (b) natural fibres (c) silver (d) none of these. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. After cutting of jute plants it is left for some days in the field when leaves are dried up these are immersed in stagnant water. The stems of the harvested plants are immersed in water for a few days. (c) True (d) True. Thus, option C is correct. a) Yarn is made from fibres. Jute is mainly grown in West Bengal,Bihar and Assam. (b) False, Jute is obtained from the stem of a jute plant. f) Silk fibre is obtained from the stem of a plant. b) Spinning is a process of making fibres. Answer (b) natural fibres Some fibres such as cotton, jute, silk and wool obtained from plants and animals are called natural fibres. The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute … In stagnant water gummy matter that holds the fibres with its stem is eaten away by bacteria. c) Jute is the outer covering of coconut. Silk is a animal fibre which is obtained from silkworm. Jute is the best fiber obtained from the internal bast tissues of the plant stem. Natural bast Fibers are strong, cellulosic fibers obtained from the phloem or outer bark of jute, kenaf, flax and hemp plant. Jute crop is cultivated in the rainy season. Jute fibre is cultivated during the rainy season. Jute fibre is obtained from the stem of the jute plant. d) The process of removing seed from cotton is called ginning. In India, jute is mainly grown in West Bengal, Bihar and Assam. Jute plant are harvested from the fields when they are at flowering stage. It is cultivated during the rainy season. Jute. Higher yields are achieved by harvesting after 100 days but the fibres are then of lesser quality. e) Weaving of yarn makes a piece of fabric. Another desirable property of jute is that it is quite lustrous. 1) Jute : Jute is one of the most used fibres which we get from the stem portion of the jute plants. Jute fibre is also known to be quite soft. Plant/vegetable fibers are obtained from plant sources such as cotton which is obtained from the seed of the cotton plant and jute which is obtained from the jute plant's stem, from the outer covering of coconut fruit from which coir is obtained. The jute plant is normally harvested when it is at flowering stage. g) Polyester is a natural fibre. Jute fibres are bast fibres (phloem fibres). Jute fibre is obtained from the stem of the jute plant. The stems are harvested jute plants are immersed in water for a few days. 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