synthetic fibres and plastics

what are the two main types of fibres

• Natural fibers and synthetic fibers
• Man-made fibers and natural fibers
• Plant fibers and animal fibers
• Artificial fibers and organic fibers

which of the following is not an example of synthetic fiber

• Polyester
• Nylon
• Cotton
• Wool

meaning of polymer

• a unit

• units

• alot a units

• many unit

rayon is used for making delicate materials. Why?

• Rayon's properties make it ideal for creating heavy-duty materials.
• Rayon is actually too strong for delicate materials.
• Rayon is not suitable for creating textiles.
• Rayon's properties make it ideal for creating delicate textiles.

two types of arrangements

• linear

• crosslinked

• united

• thermoplastic

two types of plastics

• polyethylene and polypropylene
• acrylic and polycarbonate
• thermosetting plastics and thermoplastics
• PVC and PET

name the plastic which is coated on the uniform of firemen

• Nomex
• melamine

• Kevlar
• Nylon

how can we prevent the use of plastics?

• Encourage the use of more plastics
• Ignore the issue and hope it goes away
• Promote reusable alternatives, implement bans, encourage recycling, and educate the public.
• Increase plastic production

why is polystyrene used as an insulating material in refrigerators?

• bad conductor of heat and electricity

• Polystyrene is easily biodegradable.
• Polystyrene has high thermal conductivity.
• Polystyrene is a good conductor of electricity.

WHAT ARE BLENDED FIBRES

• Fabrics made from combining two or more different textures of fibres
• Fabrics made from combining two or more different types of fibres
• Fabrics made from combining two or more different colors of fibres
• Fabrics made from combining two or more similar types of fibres