Please answer the questions.(Short).
1)What does blue and green dustbins indicate?
2)How is carrying a jute or cotton bag is eco friendly?
3)What is the 4R principle?How do you,as a student implement it?
4)Identify the plastics and write any two properties:
i)Non stick cookware
ii)Microwave cookware
iii)Fire proof/uniform of firefighters.
Thanks!
Answers
Answer:
1. green = wet waste
blue= dry waste
2. as less use of plastic
3.The 4 R principle is: 4R means Reduce, Reuse, Recycle and Restore. Reduce - We must reduce the use of resources as much as possible and save them for the future generation. Reducing the usage is a method of conservation of resources. Reuse - Resources can be reused wherever possible.
4.i Teflon
ii. polypropylene
iii. Melamine
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Answer:
- Identify the plastics and write any two properties:
- i)Non stick cookware
- R-reuse
- R-Recycle
- R - Reform
- R- Reduce
4. 1)A non-stick surface is a surface engineered to reduce the ability of other materials to stick to it.
2)Borosilicate microwave utensils might prove to be slightly expensive than others but are much more durable, stain resistant and strong.
3)A fire proximity suit (also, silvers, silver bunker suit, or asbestos suit) is a suit designed to protect a firefighter or volcanologist from extremely high temperatures. They were first designed and used in the 1930s. Originally made of asbestos fabric, current models use vacuum-deposited aluminized materials
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