Synthetic Fibres and Plastics_E_3

Mention the general characteristics of synthetic plastics. What is the first statement of this audio clip?

• Synthetic fibres possess unique characteristics which make them popular dress materials.

• They dry up quickly, are durable, less expensive, readily available and easy to maintain.

Mention the general characteristics of synthetic plastics. What is the second statement of this audio clip?

• Synthetic fibres possess unique characteristics which make them popular dress materials.

• They dry up quickly, are durable, less expensive, readily available and easy to maintain.

Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from synthetic material? Advise Rana, giving your reason.

• Rana should buy cotton shirts for summer because cotton absorbs sweats away from the body and helps eliminate moisture buildup between clothes and skin in order to keep the body dry.

• Rana should buy synthetic shirts for summer because synthetic absorbs sweats away from the body and helps eliminate moisture buildup between clothes and skin in order to keep the body warm.

Explain why some fibres are called synthetic.What is the first statement of this audio clip?

• Some fibres are called synthetic because they are made by human beings by chemical processing.

• Such fibre is made up of small units that join together to form long chains. Each small unit is actually a chemical substance.

Explain why some fibres are called synthetic. what is the second statement of this audio clip?

• Some fibres are called synthetic because they are made by human beings by chemical processing.

• Such fibre is made up of small units that join together to form long chains. Each small unit is actually a chemical substance.

Give three advantages of polythene over natural materials. first advantage?

• It is light, strong and durable.

• It can be rolled into sheets.

• It does not react with water and air.

Give three advantages of polythene over natural materials. second advantage?

• It is light, strong and durable.

• It can be rolled into sheets.

• It does not react with water and air.

Give three advantages of polythene over natural materials. third advantage?

• It is light, strong and durable.

• It can be rolled into sheets.

• It does not react with water and air.

What are the advantages of artificial silk over natural silk?what is the first statement of this audio clip?

• Rayon is obtained by chemical treatment of wood pulp.

• It is cheaper than silk and can be woven like silk fibres.

• It can also be dyed in a wide variety of colours.

What are the advantages of artificial silk over natural silk?what is the second statement of this audio clip?

• Rayon is obtained by chemical treatment of wood pulp.

• It is cheaper than silk and can be woven like silk fibres.

• It can also be dyed in a wide variety of colours.