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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 |
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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
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Explain the effect of following materials on environment and human health.
1. Plastic
2. Glass
3.Thermocol.
Can you replace the following packaging material with those which can be recycled or reused.
Milk packets of polythene.
A plastic bag dumped in the soil stays without breaking down for 500 years. If a new generation starts in every 30 years, how many generations would it take to see the plastic bag finally broken down?
Which is a thermosetting plastic?
A plastic used for making crockery is ______.
Plastics have completely occupied our life. Why?
Most one-time-use plates are made from ______.
Pet name for Buckminster Fullerene is ______.
Give some examples of one-time-use plastic.
