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प्रश्न
Who is my partner?
| 'A' column | 'B' column |
| a. Lead glass | i. Plates |
| b. Bakelite | ii. Mattresses |
| c. Thermocol | iii. Electric bulb |
| d. Optic glass | iv. Electric switch |
| e. Polypropylene | v. Lens |
उत्तर
| 'A' column | 'B' column |
| a. Lead glass | i. Electric bulb |
| b. Bakelite | ii. Electric switch |
| c. Thermocol | iii. Plates |
| d. Optic glass | iv. Lens |
| e. Polypropylene | v. Mattresses |
संबंधित प्रश्न
Explain why the following is made of thermosetting plastics.
Saucepan handles
Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
Can you replace the following packaging material with those which can be recycled or reused.
Dry eatables in polythene.
Can you replace the following packaging material with those which can be recycled or reused.
Gift items packed with shiny material.
What are the demerits of plastic?
Read the following information and convert them into a graph to compare the countries and the amount of plastic they use.
China contributes the highest share - that is around 28%, of the total plastic used globally. Indonesia uses 10%, both the Philippines and Vietnam use 6% each; Thailand uses 3.2%, Egypt 3%, Nigeria 2.7% and South Africa 2%.
A syringe that is made from a type of plastic called ______.
Plastics are flexible and waterproof and some are even UV resistant.
Plastics are environment friendly.
Give some examples of one-time-use plastic.
