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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 _______
Motor cars are coated with ____________.
Distinguish between.
Man made material and natural material.
Which measures will you arrange to minimize the environmental problems arising due to non-degradable plastic?
Give example of material that can be used again.
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?
A plastic used for making crockery is ______.
Edmund Alexander Parkes was the creator of the first plastic called ______.
Most one-time-use plates are made from ______.
Pet name for Buckminster Fullerene is ______.
