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प्रश्न
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?
उत्तर
It would take 16 to 17 generations to see the plastic bag finally broken down.
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संबंधित प्रश्न
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Explain why plastic containers are favoured for storing food.
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 |
Distinguish between
Thermoplastic and thermosetting plastic.
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.
Why is it better to avoid the use of plastic products?
HOTS
The Tamil Nadu Government has banned the use of one-time use throwaway plastics. Why do you think this is important?
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%.
Plastic articles are available in all possible shapes and sizes. Can you tell why?
