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Biodegradable-Non biodegradable: Let's t...

Biodegradable-Non biodegradable: Let's take peels of fruits and vegetables, left over food stuff, waste paper, cotton cloth and plastic bag. Keep this material in a pit. Open the pit after some days and list the material which remain a long time and those that disappear quickly.

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  • SYNTHETIC FIBRES AND PLASTICS

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Classify the following materials into biodegradable and non-biodegradable. Paper, plastic bags, tin, cotton cloth, aluminium metal cans, wood.

NCERT TELUGU-SYTHETIC FIBERS AND PLASTICS-EXERCISE
  1. Identify whether given plastic material is thermoplastic or thermosett...

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  2. Biodegradable-Non biodegradable: Let's take peels of fruits and vegeta...

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  3. Biodegradable-Non biodegradable: Let's take peels of fruits and vegeta...

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  4. What is the name given to certain material which can be break down int...

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  5. What is the name given to certain material which can be break down int...

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  6. What do we call the material which are not decomposed by natural proce...

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  7. Name two natural fibres used in making fabric.

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  8. Name two natural fibres obtained from plants.

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  9. What is polymer ?

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  10. List five things which we can make using each of the following materia...

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  11. Which are made up of acrylic.

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  12. What is the synthetic fibre “Nylon” is made of ?

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  13. How is a rayon better fibre than silk for making cloth?

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  14. Chandana, after drinking “Thums up” from a cool drink bottle noticed t...

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  15. What does this recycling code number mean present on the plastic mate...

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  16. What are thermoplastics?

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  17. What difference do you notice between the banned polythene bags and th...

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  18. Why are artificial fibres called synthetic fibres?

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  19. Traditionally fishermen used cotton nets. Now they are using nylon net...

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  20. What is fake fur?

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