1. What is the main focus of Chapter 4: Synthetic Fibres and Plastics?
The main focus of Chapter 4 is to understand synthetic fibres, plastics, their properties, and their impact on life and the environment.
2. What are synthetic fibres?
Synthetic fibres are man-made fibres produced from chemicals.
3. What are plastics?
Plastics are synthetic materials made from chemicals that can be moulded into shapes.
4. What is the source of synthetic fibres?
The source of synthetic fibres is petrochemicals derived from petroleum.
5. What is the source of plastics?
The source of plastics is petrochemicals obtained from crude oil or natural gas.
6. What is a polymer?
A polymer is a large molecule made by joining many small units called monomers.
7. What are monomers?
Monomers are small molecules that join together to form polymers.
8. Give an example of a synthetic fibre.
An example of a synthetic fibre is nylon.
9. Give an example of a plastic.
An example of a plastic is polythene.
10. What is nylon?
Nylon is a strong, elastic synthetic fibre made from chemicals.
11. What is polyester?
Polyester is a durable, wrinkle-resistant synthetic fibre used in clothes and other items.
12. What is acrylic?
Acrylic is a synthetic fibre that resembles wool and is used in sweaters and blankets.
13. What is rayon?
Rayon is a semi-synthetic fibre made from regenerated cellulose of plants.
14. What is the full form of PET?
The full form of PET is polyethylene terephthalate.
15. What is PET used for?
PET is used to make bottles, containers, and polyester fabrics.
16. What is polythene?
Polythene is a lightweight, flexible plastic used for bags and packaging.
17. What is PVC?
PVC is polyvinyl chloride, a strong plastic used in pipes and cables.
18. What is bakelite?
Bakelite is a hard, heat-resistant plastic used for electrical fittings and handles.
19. What is melamine?
Melamine is a heat-resistant plastic used for making kitchenware and laminates.
20. How are synthetic fibres made?
Synthetic fibres are made by chemically joining monomers into polymers and spinning them into fibres.
21. How are plastics made?
Plastics are made by polymerizing monomers into long chains and moulding them into shapes.
22. What is polymerization?
Polymerization is the process of joining monomers to form polymers.
23. What is the advantage of synthetic fibres?
The advantage of synthetic fibres is that they are strong, durable, and easy to maintain.
24. What is the disadvantage of synthetic fibres?
The disadvantage of synthetic fibres is that they are not breathable and can harm the environment.
25. What is the advantage of plastics?
The advantage of plastics is that they are lightweight, durable, and versatile.
26. What is the disadvantage of plastics?
The disadvantage of plastics is that they are non-biodegradable and pollute the environment.
27. Why is nylon used for ropes?
Nylon is used for ropes because it is strong and elastic.
28. Why is polyester used in clothes?
Polyester is used in clothes because it is wrinkle-resistant and durable.
29. Why is acrylic used in sweaters?
Acrylic is used in sweaters because it is lightweight and resembles wool.
30. Why is rayon called a semi-synthetic fibre?
Rayon is called a semi-synthetic fibre because it is made from natural cellulose but processed chemically.
31. What is the use of nylon in daily life?
Nylon is used in daily life for making ropes, parachutes, and stockings.
32. What is the use of polyester in daily life?
Polyester is used in daily life for making clothes, bottles, and bags.
33. What is the use of acrylic in daily life?
Acrylic is used in daily life for making sweaters, blankets, and carpets.
34. What is the use of rayon in daily life?
Rayon is used in daily life for making dresses, shirts, and bedsheets.
35. What is the use of polythene in daily life?
Polythene is used in daily life for making bags, sheets, and packaging.
36. What is the use of PVC in daily life?
PVC is used in daily life for making pipes, cables, and raincoats.
37. What is the use of bakelite in daily life?
Bakelite is used in daily life for making electrical switches and handles.
38. What is the use of melamine in daily life?
Melamine is used in daily life for making plates, cups, and laminates.
39. What property makes nylon strong?
The property that makes nylon strong is its long, tightly packed polymer chains.
40. What property makes polyester wrinkle-resistant?
The property that makes polyester wrinkle-resistant is its stable molecular structure.
41. What property makes acrylic wool-like?
The property that makes acrylic wool-like is its soft and fluffy texture.
42. What property makes rayon silk-like?
The property that makes rayon silk-like is its smooth and shiny surface.
43. What property makes plastics mouldable?
The property that makes plastics mouldable is their ability to soften when heated.
44. What is a thermoplastic?
A thermoplastic is a plastic that becomes soft when heated and hard when cooled.
45. What is a thermosetting plastic?
A thermosetting plastic is a plastic that becomes permanently hard when heated.
46. Give an example of a thermoplastic.
An example of a thermoplastic is polythene.
47. Give an example of a thermosetting plastic.
An example of a thermosetting plastic is bakelite.
48. Can thermoplastics be recycled?
Yes, thermoplastics can be recycled because they can be melted and reshaped.
49. Can thermosetting plastics be recycled?
No, thermosetting plastics cannot be recycled because they do not melt once set.
50. Why is polythene a thermoplastic?
Polythene is a thermoplastic because it softens when heated and hardens when cooled.
51. Why is bakelite a thermosetting plastic?
Bakelite is a thermosetting plastic because it sets permanently when heated.
52. What is the difference between thermoplastics and thermosetting plastics?
Thermoplastics can be reshaped when heated, while thermosetting plastics cannot.
53. What is the use of thermoplastics?
Thermoplastics are used for making bottles, bags, and containers.
54. What is the use of thermosetting plastics?
Thermosetting plastics are used for making electrical fittings and kitchenware.
55. Why are plastics non-biodegradable?
Plastics are non-biodegradable because they do not break down naturally by microorganisms.
56. What does biodegradable mean?
Biodegradable means a substance can be broken down naturally by microorganisms.
57. What does non-biodegradable mean?
Non-biodegradable means a substance cannot be broken down naturally by microorganisms.
58. Give an example of a biodegradable material.
An example of a biodegradable material is paper.
59. Give an example of a non-biodegradable material.
An example of a non-biodegradable material is plastic.
60. Why are plastics harmful to the environment?
Plastics are harmful to the environment because they pollute land and water and do not decompose.
61. What is plastic pollution?
Plastic pollution is the accumulation of plastic waste in the environment, harming ecosystems.
62. How does plastic affect animals?
Plastic affects animals by causing choking, entanglement, and ingestion-related deaths.
63. How does plastic affect soil?
Plastic affects soil by preventing water and air from reaching it, reducing fertility.
64. How does plastic affect water bodies?
Plastic affects water bodies by polluting them and harming aquatic life.
65. What is the 4R principle?
The 4R principle is Reduce, Reuse, Recycle, and Recover to manage plastic waste.
66. What does \'reduce\' mean in the 4R principle?
\'Reduce\' means using less plastic to minimize waste.
67. What does \'reuse\' mean in the 4R principle?
\'Reuse\' means using plastic items multiple times instead of throwing them away.
68. What does \'recycle\' mean in the 4R principle?
\'Recycle\' means processing used plastic to make new products.
69. What does \'recover\' mean in the 4R principle?
\'Recover\' means using plastic waste to generate energy, like in incineration.
70. How can we reduce plastic use?
We can reduce plastic use by using cloth bags instead of plastic bags.
71. How can we reuse plastic?
We can reuse plastic by using bottles and containers multiple times.
72. How can we recycle plastic?
We can recycle plastic by collecting it and sending it to recycling plants.
73. What is the benefit of recycling plastic?
The benefit of recycling plastic is that it reduces waste and saves resources.
74. What happens when plastic is burned?
When plastic is burned, it releases toxic gases that pollute the air.
75. Why should we avoid burning plastic?
We should avoid burning plastic because it causes air pollution and health problems.
76. What is a synthetic fibre that burns and melts?
Nylon is a synthetic fibre that burns and melts.
77. What is a synthetic fibre that does not melt?
Rayon is a synthetic fibre that burns but does not melt.
78. What happens when polyester burns?
When polyester burns, it melts and produces black smoke.
79. What happens when acrylic burns?
When acrylic burns, it melts and gives off a sharp smell.
80. What is the smell like when nylon burns?
The smell when nylon burns is like burning plastic or chemicals.
81. Why do synthetic fibres melt when burned?
Synthetic fibres melt when burned because they are made from petrochemicals.
82. What is the smell like when rayon burns?
The smell when rayon burns is like burning paper because it is cellulose-based.
83. How can you identify nylon?
You can identify nylon by its strength and melting when burned.
84. How can you identify polyester?
You can identify polyester by its wrinkle resistance and melting with black smoke when burned.
85. How can you identify acrylic?
You can identify acrylic by its wool-like texture and melting when burned.
86. How can you identify rayon?
You can identify rayon by its silk-like feel and burning like paper.
87. What is the use of nylon in sports?
Nylon is used in sports for making nets and sportswear due to its strength.
88. What is the use of polyester in sports?
Polyester is used in sports for making uniforms and tracksuits due to its durability.
89. What is the use of acrylic in winter?
Acrylic is used in winter for making sweaters and scarves due to its warmth.
90. What is the use of rayon in summer?
Rayon is used in summer for making dresses due to its breathability.
91. What is the use of PVC in construction?
PVC is used in construction for making pipes and fittings due to its strength.
92. What is the use of polythene in packaging?
Polythene is used in packaging for making bags and wraps due to its flexibility.
93. What is the use of melamine in kitchens?
Melamine is used in kitchens for making unbreakable plates and cups.
94. What is the use of bakelite in electronics?
Bakelite is used in electronics for making switches and plugs due to its heat resistance.
95. Why is nylon used in parachutes?
Nylon is used in parachutes because it is strong and lightweight.
96. Why is polyester used in bottles?
Polyester is used in bottles because it is strong and transparent as PET.
97. Why is acrylic used in blankets?
Acrylic is used in blankets because it is warm and lightweight.
98. Why is rayon used in bedsheets?
Rayon is used in bedsheets because it is soft and comfortable.
99. What is a plastic that resists fire?
Melamine is a plastic that resists fire.
100. What is a plastic that conducts electricity?
Most plastics do not conduct electricity, but some special plastics can be made conductive.
101. Why are plastics good insulators?
Plastics are good insulators because they do not allow electricity to pass through.
102. What is the use of plastics as insulators?
Plastics are used as insulators to cover wires and cables for safety.
103. What is the property of plastics that makes them waterproof?
The property of plastics that makes them waterproof is their non-porous nature.
104. Why are plastics used in raincoats?
Plastics are used in raincoats because they are waterproof.
105. Why are plastics used in containers?
Plastics are used in containers because they are lightweight and durable.
106. What is the use of plastic in furniture?
Plastic is used in furniture for making chairs and tables due to its mouldability.
107. What is the use of plastic in toys?
Plastic is used in toys because it is easy to shape and colorful.
108. What is the use of plastic in vehicles?
Plastic is used in vehicles for making dashboards and bumpers due to its lightness.
109. What is the use of plastic in medical equipment?
Plastic is used in medical equipment for making syringes and gloves due to its sterility.
110. What is the use of plastic in packaging food?
Plastic is used in packaging food because it is lightweight and keeps food fresh.
111. What is a biodegradable plastic?
A biodegradable plastic is a plastic that can break down naturally by microorganisms.
112. Give an example of a biodegradable plastic.
An example of a biodegradable plastic is polylactic acid (PLA).
113. How is biodegradable plastic different from regular plastic?
Biodegradable plastic decomposes naturally, while regular plastic does not.
114. Why are biodegradable plastics important?
Biodegradable plastics are important because they reduce environmental pollution.
115. What is the disadvantage of biodegradable plastics?
The disadvantage of biodegradable plastics is that they are expensive to produce.
116. What is the use of biodegradable plastics?
Biodegradable plastics are used for making disposable bags and packaging.
117. What is microplastic?
Microplastic is tiny plastic particles that pollute water and soil.
118. How are microplastics formed?
Microplastics are formed by the breakdown of larger plastic items.
119. Why are microplastics harmful?
Microplastics are harmful because they enter food chains and affect health.
120. What is the source of microplastics in the ocean?
The source of microplastics in the ocean is plastic waste breaking down over time.
121. How can we reduce microplastic pollution?
We can reduce microplastic pollution by reducing plastic use and proper waste disposal.
122. What is the use of nylon in fishing nets?
Nylon is used in fishing nets because it is strong and durable.
123. What is the use of polyester in curtains?
Polyester is used in curtains because it is durable and easy to wash.
124. What is the use of acrylic in carpets?
Acrylic is used in carpets because it is soft and resists wear.
125. What is the use of rayon in sarees?
Rayon is used in sarees because it is shiny and drapes well.
126. What is the use of PVC in shoes?
PVC is used in shoes because it is waterproof and flexible.
127. What is the use of polythene in greenhouses?
Polythene is used in greenhouses because it is transparent and traps heat.
128. What is the use of melamine in fire-resistant fabrics?
Melamine is used in fire-resistant fabrics because it resists burning.
129. What is the use of bakelite in telephone casings?
Bakelite is used in telephone casings because it is hard and heat-resistant.
130. Why is nylon used in stockings?
Nylon is used in stockings because it is elastic and strong.
131. Why is polyester used in bags?
Polyester is used in bags because it is strong and lightweight.
132. Why is acrylic used in socks?
Acrylic is used in socks because it is soft and warm.
133. Why is rayon used in towels?
Rayon is used in towels because it is absorbent and soft.
134. What is the use of plastic in pipes?
Plastic is used in pipes because it is corrosion-resistant and lightweight.
135. What is the use of plastic in cables?
Plastic is used in cables because it insulates electricity.
136. What is the use of plastic in buckets?
Plastic is used in buckets because it is durable and easy to mould.
137. What is the use of plastic in chairs?
Plastic is used in chairs because it is lightweight and cheap.
138. What is the use of plastic in bottles?
Plastic is used in bottles because it is strong and transparent.
139. What is the use of plastic in bags?
Plastic is used in bags because it is flexible and waterproof.
140. What is the use of plastic in toys?
Plastic is used in toys because it is colorful and easy to shape.
141. What is the use of plastic in mats?
Plastic is used in mats because it is durable and easy to clean.
142. What is the use of plastic in raincoats?
Plastic is used in raincoats because it is waterproof.
143. What is the use of plastic in shoes?
Plastic is used in shoes because it is flexible and water-resistant.
144. What is the use of plastic in helmets?
Plastic is used in helmets because it is strong and lightweight.
145. What is the use of plastic in pens?
Plastic is used in pens because it is cheap and easy to mould.
146. What is the use of plastic in boxes?
Plastic is used in boxes because it is durable and lightweight.
147. What is the use of plastic in switches?
Plastic is used in switches because it is an insulator and heat-resistant.
148. What is the use of plastic in fans?
Plastic is used in fans because it is lightweight and mouldable.
149. What is the use of plastic in brushes?
Plastic is used in brushes because it is durable and easy to shape.
150. What is the use of plastic in combs?
Plastic is used in combs because it is cheap and strong.
151. What is the use of plastic in glasses?
Plastic is used in glasses because it is lightweight and durable.
152. What is the use of plastic in clocks?
Plastic is used in clocks because it is easy to mould and lightweight.
153. What is the use of plastic in lamps?
Plastic is used in lamps because it is heat-resistant and mouldable.
154. What is the use of plastic in phones?
Plastic is used in phones because it is lightweight and durable.
155. What is the use of plastic in laptops?
Plastic is used in laptops because it is strong and lightweight.
156. What is the use of plastic in TVs?
Plastic is used in TVs because it is durable and mouldable.
157. What is the use of plastic in refrigerators?
Plastic is used in refrigerators because it is lightweight and corrosion-resistant.
158. What is the use of plastic in ovens?
Plastic is used in ovens because it is heat-resistant in some forms.
159. What is the use of plastic in cars?
Plastic is used in cars because it reduces weight and resists corrosion.
160. What is the use of plastic in bikes?
Plastic is used in bikes because it is lightweight and durable.
161. What is the use of plastic in scooters?
Plastic is used in scooters because it is strong and mouldable.
162. What is the use of plastic in trains?
Plastic is used in trains because it is lightweight and durable.
163. What is the use of plastic in planes?
Plastic is used in planes because it reduces weight and is strong.
164. What is the use of plastic in ships?
Plastic is used in ships because it resists water and corrosion.
165. What is the use of plastic in rockets?
Plastic is used in rockets because it is lightweight and strong in some forms.
166. What is the use of plastic in satellites?
Plastic is used in satellites because it is durable and lightweight.
167. What is the use of plastic in sports equipment?
Plastic is used in sports equipment because it is strong and flexible.
168. What is the use of plastic in musical instruments?
Plastic is used in musical instruments because it is mouldable and lightweight.
169. What is the use of plastic in tools?
Plastic is used in tools because it is durable and insulates.
170. What is the use of plastic in machines?
Plastic is used in machines because it is lightweight and corrosion-resistant.
171. What is the use of plastic in bags?
Plastic is used in bags because it is waterproof and flexible.
172. What is the use of plastic in wallets?
Plastic is used in wallets because it is durable and lightweight.
173. What is the use of plastic in belts?
Plastic is used in belts because it is strong and flexible.
174. What is the use of plastic in straps?
Plastic is used in straps because it is strong and elastic.
175. What is the use of plastic in ropes?
Plastic is used in ropes because it is strong and durable.
176. What is the use of plastic in nets?
Plastic is used in nets because it is strong and lightweight.
177. What is the use of plastic in tents?
Plastic is used in tents because it is waterproof and durable.
178. What is the use of plastic in umbrellas?
Plastic is used in umbrellas because it is waterproof and lightweight.
179. What is the use of plastic in mats?
180. What is the use of plastic in carpets?
Plastic is used in carpets because it is durable and resists wear.
181. What is the use of plastic in rugs?
Plastic is used in rugs because it is strong and easy to maintain.
182. What is the use of plastic in curtains?
Plastic is used in curtains because it is durable and waterproof.
183. What is the use of plastic in blinds?
Plastic is used in blinds because it is lightweight and durable.
184. What is the use of plastic in sheets?
Plastic is used in sheets because it is flexible and waterproof.
185. What is the use of plastic in covers?
Plastic is used in covers because it protects from dust and water.
186. What is the use of plastic in wrappers?
Plastic is used in wrappers because it keeps items fresh and safe.
187. What is the use of plastic in packets?
Plastic is used in packets because it is lightweight and seals well.
188. What is the use of plastic in pouches?
Plastic is used in pouches because it is flexible and durable.
189. What is the use of plastic in sacks?
Plastic is used in sacks because it is strong and waterproof.
190. What is the use of plastic in containers?
Plastic is used in containers because it is lightweight and durable.
191. What is the use of plastic in jars?
Plastic is used in jars because it is unbreakable and lightweight.
192. What is the use of plastic in cans?
Plastic is used in cans because it is corrosion-resistant and light.
193. What is the use of plastic in tubes?
Plastic is used in tubes because it is flexible and durable.
194. What is the use of plastic in hoses?
Plastic is used in hoses because it is flexible and waterproof.
195. What is the use of plastic in pipes?
Plastic is used in pipes because it resists rust and is lightweight.
196. What is the use of plastic in fittings?
Plastic is used in fittings because it is durable and easy to install.
197. What is the use of plastic in valves?
Plastic is used in valves because it is corrosion-resistant and strong.
198. What is the use of plastic in taps?
Plastic is used in taps because it is lightweight and durable.
199. What is the use of plastic in nozzles?
Plastic is used in nozzles because it is mouldable and strong.
200. What is the use of plastic in sprinklers?
Plastic is used in sprinklers because it is lightweight and durable.
201. What is the use of plastic in buckets?
Plastic is used in buckets because it is strong and waterproof.
202. What is the use of plastic in mugs?
Plastic is used in mugs because it is unbreakable and lightweight.
203. What is the use of plastic in plates?
Plastic is used in plates because it is durable and easy to clean.
204. What is the use of plastic in spoons?
Plastic is used in spoons because it is lightweight and cheap.
205. What is the use of plastic in forks?
Plastic is used in forks because it is durable and disposable.
206. What is the use of plastic in knives?
Plastic is used in knives because it is lightweight and safe.
207. What is the use of plastic in bowls?
Plastic is used in bowls because it is unbreakable and lightweight.
208. What is the use of plastic in trays?
Plastic is used in trays because it is durable and easy to carry.
209. What is the use of plastic in glasses?
Plastic is used in glasses because it is unbreakable and lightweight.
210. What is the use of plastic in cups?
Plastic is used in cups because it is cheap and durable.
211. What is the use of plastic in bottles?
Plastic is used in bottles because it is strong and lightweight.
212. What is the use of plastic in jars?
Plastic is used in jars because it is transparent and durable.
213. What is the use of plastic in boxes?
Plastic is used in boxes because it is strong and lightweight.
214. What is the use of plastic in cases?
Plastic is used in cases because it is durable and protective.
215. What is the use of plastic in holders?
Plastic is used in holders because it is mouldable and strong.
216. What is the use of plastic in stands?
Plastic is used in stands because it is lightweight and durable.
217. What is the use of plastic in racks?
Plastic is used in racks because it is strong and easy to clean.
218. What is the use of plastic in shelves?
Plastic is used in shelves because it is lightweight and durable.
219. What is the use of plastic in drawers?
Plastic is used in drawers because it is strong and lightweight.
220. What is the use of plastic in cabinets?
Plastic is used in cabinets because it is durable and water-resistant.
221. What is the use of plastic in frames?
Plastic is used in frames because it is lightweight and mouldable.
222. What is the use of plastic in mirrors?
Plastic is used in mirrors because it is durable and lightweight.
223. What is the use of plastic in clocks?
Plastic is used in clocks because it is cheap and easy to shape.
224. What is the use of plastic in lamps?
225. What is the use of plastic in fans?
Plastic is used in fans because it is lightweight and durable.
226. What is the use of plastic in switches?
Plastic is used in switches because it is an insulator and durable.
227. What is the use of plastic in plugs?
Plastic is used in plugs because it is insulating and strong.
228. What is the use of plastic in sockets?
Plastic is used in sockets because it is heat-resistant and insulating.
229. What is the use of plastic in wires?
Plastic is used in wires because it insulates electricity.
230. What is the use of plastic in cables?
Plastic is used in cables because it protects and insulates.
231. What is the use of plastic in chargers?
Plastic is used in chargers because it is durable and insulating.
232. What is the use of plastic in batteries?
Plastic is used in batteries because it is lightweight and insulating.
233. What is the use of plastic in remotes?
Plastic is used in remotes because it is lightweight and mouldable.
234. What is the use of plastic in keyboards?
Plastic is used in keyboards because it is durable and lightweight.
235. What is the use of plastic in mouse devices?
Plastic is used in mouse devices because it is strong and mouldable.
236. What is the use of plastic in headphones?
Plastic is used in headphones because it is lightweight and durable.
237. What is the use of plastic in speakers?
Plastic is used in speakers because it is strong and mouldable.
238. What is the use of plastic in microphones?
Plastic is used in microphones because it is lightweight and durable.
239. What is the use of plastic in cameras?
Plastic is used in cameras because it is strong and lightweight.
240. What is the use of plastic in lenses?
Plastic is used in lenses because it is transparent and mouldable.
241. What is the use of plastic in screens?
Plastic is used in screens because it is durable and lightweight.
242. What is the use of plastic in monitors?
Plastic is used in monitors because it is strong and mouldable.
243. What is the use of plastic in printers?
Plastic is used in printers because it is lightweight and durable.
244. What is the use of plastic in scanners?
Plastic is used in scanners because it is strong and mouldable.
245. What is the use of plastic in projectors?
Plastic is used in projectors because it is lightweight and durable.
246. What is the use of plastic in calculators?
Plastic is used in calculators because it is cheap and mouldable.
247. What is the use of plastic in watches?
Plastic is used in watches because it is lightweight and durable.
248. What is the use of plastic in straps?
Plastic is used in straps because it is strong and flexible.
249. What is the use of plastic in bands?
Plastic is used in bands because it is elastic and durable.
250. What is the use of plastic in bracelets?
Plastic is used in bracelets because it is lightweight and colorful.
251. What is the use of plastic in rings?
Plastic is used in rings because it is cheap and mouldable.
252. What is the use of plastic in necklaces?
Plastic is used in necklaces because it is lightweight and durable.
253. What is the use of plastic in earrings?
Plastic is used in earrings because it is lightweight and colorful.
254. What is the use of plastic in hairpins?
Plastic is used in hairpins because it is strong and mouldable.
255. What is the use of plastic in clips?
Plastic is used in clips because it is durable and lightweight.
256. What is the use of plastic in ties?
Plastic is used in ties because it is flexible and strong.
257. What is the use of plastic in belts?
Plastic is used in belts because it is durable and flexible.
258. What is the use of plastic in buckles?
Plastic is used in buckles because it is strong and lightweight.
259. What is the use of plastic in buttons?
Plastic is used in buttons because it is durable and mouldable.
260. What is the use of plastic in zippers?
Plastic is used in zippers because it is strong and lightweight.
261. What is the use of plastic in hooks?
Plastic is used in hooks because it is durable and mouldable.
262. What is the use of plastic in hangers?
Plastic is used in hangers because it is lightweight and strong.
263. What is the use of plastic in pegs?
Plastic is used in pegs because it is durable and cheap.
264. What is the use of plastic in clips?
Plastic is used in clips because it is strong and lightweight.
265. What is the use of plastic in pins?
Plastic is used in pins because it is mouldable and durable.
266. What is the use of plastic in nails?
Plastic is used in nails because it is lightweight and corrosion-resistant.
267. What is the use of plastic in screws?
Plastic is used in screws because it is durable and lightweight.
268. What is the use of plastic in bolts?
Plastic is used in bolts because it is strong and corrosion-resistant.
269. What is the use of plastic in nuts?
Plastic is used in nuts because it is lightweight and durable.
270. What is the use of plastic in washers?
Plastic is used in washers because it is strong and corrosion-resistant.
271. What is the use of plastic in hinges?
Plastic is used in hinges because it is durable and lightweight.
272. What is the use of plastic in locks?
Plastic is used in locks because it is strong and mouldable.
273. What is the use of plastic in keys?
Plastic is used in keys because it is lightweight and durable.
274. What is the use of plastic in handles?
Plastic is used in handles because it is strong and heat-resistant.
275. What is the use of plastic in grips?
Plastic is used in grips because it is durable and non-slip.
276. What is the use of plastic in knobs?
Plastic is used in knobs because it is lightweight and mouldable.
277. What is the use of plastic in dials?
Plastic is used in dials because it is durable and lightweight.
278. What is the use of plastic in switches?
279. What is the use of plastic in panels?
Plastic is used in panels because it is lightweight and strong.
280. What is the use of plastic in boards?
Plastic is used in boards because it is durable and water-resistant.
281. What is the use of plastic in tiles?
Plastic is used in tiles because it is strong and easy to clean.
282. What is the use of plastic in sheets?
283. What is the use of plastic in films?
Plastic is used in films because it is thin and transparent.
284. What is the use of plastic in wraps?
Plastic is used in wraps because it is flexible and seals well.
285. What is the use of plastic in tapes?
Plastic is used in tapes because it is strong and adhesive.
286. What is the use of plastic in labels?
Plastic is used in labels because it is durable and waterproof.
287. What is the use of plastic in tags?
Plastic is used in tags because it is strong and lightweight.
288. What is the use of plastic in cards?
Plastic is used in cards because it is durable and flexible.
289. What is the use of plastic in badges?
Plastic is used in badges because it is lightweight and mouldable.
290. What is the use of plastic in stickers?
Plastic is used in stickers because it is durable and adhesive.
291. What is the use of plastic in seals?
Plastic is used in seals because it is strong and waterproof.
292. What is the use of plastic in gaskets?
Plastic is used in gaskets because it is flexible and durable.
293. What is the use of plastic in rings?
Plastic is used in rings because it is lightweight and mouldable.
294. What is the use of plastic in caps?
Plastic is used in caps because it is strong and easy to shape.
295. What is the use of plastic in lids?
Plastic is used in lids because it is durable and lightweight.
296. What is the use of plastic in tops?
Plastic is used in tops because it is strong and mouldable.
297. What is the use of plastic in plugs?
Plastic is used in plugs because it is insulating and durable.
298. What is the use of plastic in stoppers?
Plastic is used in stoppers because it is strong and flexible.
299. What is the use of plastic in valves?
Plastic is used in valves because it is corrosion-resistant and lightweight.
300. What is the use of plastic in joints?
Plastic is used in joints because it is durable and flexible.
301. What is the use of plastic in connectors?
Plastic is used in connectors because it is strong and mouldable.
302. What is the use of plastic in couplers?
Plastic is used in couplers because it is lightweight and durable.
303. What is the use of plastic in adapters?
Plastic is used in adapters because it is strong and insulating.
304. What is the use of plastic in fittings?
305. What is the use of plastic in pipes?
Plastic is used in pipes because it is lightweight and rust-resistant.
306. What is the use of plastic in tubes?
307. What is the use of plastic in hoses?
Plastic is used in hoses because it is waterproof and flexible.
308. What is the use of plastic in ducts?
Plastic is used in ducts because it is strong and lightweight.
309. What is the use of plastic in channels?
Plastic is used in channels because it is durable and mouldable.
310. What is the use of plastic in drains?
Plastic is used in drains because it is corrosion-resistant and lightweight.
311. What is the use of plastic in gutters?
Plastic is used in gutters because it is durable and water-resistant.
312. What is the use of plastic in tanks?
Plastic is used in tanks because it is strong and corrosion-resistant.
313. What is the use of plastic in barrels?
Plastic is used in barrels because it is lightweight and durable.
314. What is the use of plastic in drums?
Plastic is used in drums because it is strong and water-resistant.
315. What is the use of plastic in bins?
Plastic is used in bins because it is durable and easy to clean.
316. What is the use of plastic in cans?
Plastic is used in cans because it is lightweight and corrosion-resistant.
317. What is the use of plastic in bottles?
318. What is the use of plastic in jars?
Plastic is used in jars because it is durable and lightweight.
319. What is the use of plastic in containers?
Plastic is used in containers because it is strong and mouldable.
320. What is the use of plastic in boxes?
Plastic is used in boxes because it is lightweight and durable.
321. What is the use of plastic in crates?
Plastic is used in crates because it is strong and stackable.
322. What is the use of plastic in trays?
323. What is the use of plastic in baskets?
Plastic is used in baskets because it is lightweight and strong.
324. What is the use of plastic in bags?
325. What is the use of plastic in sacks?
Plastic is used in sacks because it is strong and durable.
326. What is the use of plastic in pouches?
Plastic is used in pouches because it is flexible and lightweight.
327. What is the use of plastic in packets?
Plastic is used in packets because it is durable and seals well.
328. What is the use of plastic in wrappers?
Plastic is used in wrappers because it is flexible and protective.
329. What is the use of plastic in covers?
Plastic is used in covers because it is waterproof and durable.
330. What is the use of plastic in sheets?
Plastic is used in sheets because it is flexible and strong.
331. What is the use of plastic in films?
332. What is the use of plastic in tapes?
333. What is the use of plastic in labels?
334. What is the use of plastic in tags?
Plastic is used in tags because it is lightweight and strong.
335. What is the use of plastic in cards?
336. What is the use of plastic in badges?
337. What is the final goal of studying synthetic fibres and plastics?
The final goal of studying synthetic fibres and plastics is to understand their uses and manage their environmental impact.
338. How do synthetic fibres and plastics benefit daily life?
Synthetic fibres and plastics benefit daily life by providing durable, affordable, and versatile materials.
339. What is the environmental challenge of synthetic fibres and plastics?
The environmental challenge of synthetic fibres and plastics is their non-biodegradable nature causing pollution.
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