Q70 of 83 Page 57

The manufacture of one of the following artificial fibres contributes to deforestation this fibre is :

Rayon is obtained by the chemical treatment of wood pulp or cellulose causing deforestation.

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68

The plastic which is coated on the uniforms of firemen to make them fire-resistant is:

 69

Which of the following is a man-made fibre prepared from wood-pulp?

 71

The non-stick coating on frying pans is that of a plastic called:

 72

Which of the following plastics is used for making electric switches?