Question

B. VERY SHORT-ANSWER QUESTIONS: Give one-word answers.
1. What name is given to natural materials that are used to man
anufacture human-made
materials?
2. What is the most common source for synthetic fibres?
3. Which artificial fibre is made from wood pulp?
4. Cotton and wool are natural polymers. True or false?
5. Which synthetic fibre is commonly used to make strong ropes?
6. Which synthetic fibre is also called artificial silk?
7. All plastics are made of long chain molecules called
8. Name the plastic whose sheets are used for packing liquids.
9. From which plastic material is thermocol made?
0. Which plastic material is used to make non-stick pans?
1. Name one thermosetting plastic which is a good insulator and is used to make plugs and
switches.
al montering og​

Answer 1

Answer:

1. Raw materials.

2. Petroleum

3. Rayon

4. true

5. nylon

6. rayon

7. polymers

8. polyethylene terephthalate

9. polystyrene

10. polytetrafluoroethylene

11. Melamine Formaldehyde

Answer 2

1. Natural fabrics—such as cotton, silk and wool—are made of animal or plant-based fibres, while synthetics are man-made and produced entirely from chemicals to create fabrics like polyester, rayon, acrylic, and many others
2. The most common source for the synthetic fibres is petroleum.
3. Manufactured cellulose fibers come from plants that are processed into a pulp and then extruded in the same ways that synthetic fibers like polyester or nylon are made. Rayon or viscose is one of the most common "manufactured" cellulose fibers, and it can be made from wood pulp.
4. Cotton plants are grown for fibre and their seeds can be used for preparing cooking oil. Wool is a kind of animal fibre taken from hair of sheep and goats. The quality of wool fibres is assessed based on several characteristics including fibre length, fineness, colour, cleanliness, damage and surface scales. Therefore,its True
5. Nylon fibre is used in making ropes for rock climbing and parachutes because it is a very strong fibre.
6. Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, "artificial silk" is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk.
7. All plastics are made of long chain of molecules called Polymers
8. For packaging of liquids plastic used is polyethylene terephthalate which is a polymer of ethylene terephthalate.
9. Thermocol contains an important thermoplastic compound, called polystyrene which is obtained by the polymerisation of styrene or phenylethene.
10. Teflon is a trademark of DuPont for a plastic material known as polytetrafluoroethylene.
11. Melamine Formaldehyde is the thermosetting plastic which is used to make plugs and switches

I tried to give you in some detail information!

Mark Me as Brainliest!!!