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| Q. |
Which of the following fibres is considered as the stron est natural fibre? |
| A. | Cotton |
| B. | Jute |
| C. | Wool |
| D. | Silk |
| Answer» D. Silk | |
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Explanation: Ultrastrong spider silk is one of the toughest natural fibers known in nature. The light, flexible fiber is five times stronger by weight than high-grade steel and extremely stretchy, enlarging to snag incoming insects and other prey. |
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