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प्रश्न
Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
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उत्तर
No. The handle and bristles of a tooth brush should be made of different materials. The handle of a toothbrush should be hard and strong, while the bristles should be soft and flexible.
संबंधित प्रश्न
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Explain why the following is made of thermosetting plastics.
Saucepan handles
Plastic shows ______ property, hence it can be moulded to any shape.
Give example of material that can be used again.
Can you replace the following packaging material with those which can be recycled or reused.
Milk packets of polythene.
What are the uses of plastic?
True or False
A lot of plastic pollutes our environment.
The material which is commonly used for making kitchen containers is ______.
The used plate is easy to recycle.
Assertion (A): PVC is an unsafe plastic.
Reason (R): Burning PVC releases dioxins, a most toxic chemical.
