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Melamine is a chemical compound that has a number of industrial uses, including the production of laminates, glues, dinnerware, adhesives, molding compounds, coatings and flame retardants. Melamine is a name used both for the chemical and for the plastic made from it.
electric plugs and switches are made of plastics because they are more safer than other materials like iron,copper etc which conduct electricity which is very dangerous while switching plugs so switches and plugs are made of plastics .
(a) Synthetic fibres are also called artificial or manmade fibres.
WHY?? The wool obtained from natural sources is quite expensive ,whereas clothes made from acrylic are relatively cheap. … Though they couldn’t absorb moist and sweat ,they are of good quality for fashionable clothes. They are more durable and affordable which makes them more popular than natural fibres.
There are 2 different types of fiber — soluble and insoluble. Both are important for health, digestion, and preventing diseases. Soluble fiber attracts water and turns to gel during digestion.
Answer. Answer: An artificial silk give a smell of burning paper whereas,Pure silk and wool is made up from juices of protein. And wool is obtained from animals hair so it gives a smell of burning hair.
they have thick coat of hair on their body to protect themselves against the cold climatic condition. They do so by trapping the heat in their coat which helps in keeping them warm .
Scouring is done to remove grease, dust and dirt from the raw sheared wool. In the process of scouring, fleece is washed with detergents and alkalis in special tanks to get rid of the grease, dust and dirt. After scouring, fleece of different textures are separated. These days, scouring is done by machines.
Solution 1: (a) The skin of the black sheep has fur like hairs mainly at the back and abdomen, known as wool. (b) White hairs of a lamb are also known as white fleece.
Silkworms eat only mulberry leaves. The entire process can be controlled by keeping the worms in a controlled environment; protecting them from ants, mice, and disease; and feeding them mulberry leaves.