PUMPA - SMART LEARNING

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

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Answer the following questions:
  
1. Explain why some fibres are called synthetic?
 
Some fibres are made by human beings, known as fibres.
These fibres are artificially prepared using various chemicals based on petroleum.
Synthetic fibres are small units of substance that combine to form a unit called a .
Examples of synthetic fibres are rayon, nylon, polyester, acrylic, etc.
 
2. Mark (✓) the correct answer.
Rayon is different from synthetic fibres because
(a). it has a silk-like appearance.
(b). it is obtained from wood pulp.
(c). its fibres can also be woven like those of natural fibres.
 
Rayon is different from synthetic fibres because.