Question

plzz answer fast.......​

Answer 1

Answer:

it is useful because

Explanation:

we don't want to destroy the nature and it is available in less cost

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Answer 2

Answer:

Two uses of Rayon are:-

i) It is used for making carpets.

ii) It is also used in medicinal purposes like for making bandages, and dressing tapes.

Two uses of nylon are:-

i) It is used in electrical hardware industries for its ability for heat resistance.

ii) It is also used for making parachutes.

Two uses of polyester are:-

i) In industries, polyester is used for making fibers, yarns and ropes are used in car tire reinforcements.

ii) Polyester fiber is used as cushioning and insulating material in pillows, comforters and upholstery padding.

Two uses of acrylic are:-

i) It is used for making roof windows, lenses and screens.

ii) This material is very demanding for making windows in submarines and fiber optics in the flat-screen TV's.

Explanation: