Fiibers and fabrics: analyse and choose an answer

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Think before you answer:

1. Silk and rayon both are obtained from natural sources such as plants and animals. But, silk is a natural fibre, and rayon is an artificial fibre. Why?

Rayon can be mixed with cotton
Natural Silk is obtained from silkworm which is a living thing.
Classification is based on the amount of time taken to manufacture
Rayon fiber manufacturing involves chemical treatment

2. Plastics are mostly avoidable in the case of storage of food. Why?

They are leaky
Plastics reacts with heat from the food and makes it harmfull
Colouring agents added to plastics
None of these

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12. Fiibers and fabrics: analyse and choose an answer

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