Plants provide us with many natural materials, such as hemp, cotton, wood, paper, linen, vegetable oils, some types of rope, and rubber which are the major resource for human economy. The production of silk from the cultivation of the mulberry plant made a great turn over in garments industry. Fern like plants are used in Weaving and Basketry. Sugarcanes, rapeseeds, with  high fermentable sugar or oil content are been used as source of biofuels, which are important alternatives to fossil fuels.
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