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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
Explain why the following is made of thermosetting plastics.
Saucepan handles
Write the natural or manmade raw material of the following items.
Mattress, glass vessel, bangle, chair, gunny bag, broom, knife, pen.
Which measures will you arrange to minimize the environmental problems arising due to non-degradable plastic?
What are the demerits of plastic?
Why should we be careful in using plastic bags to store cooked food items?
A good application of plastic is the use of ______
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 syringe that is made from a type of plastic called ______.
Edmund Alexander Parkes was the creator of the first plastic called ______.
Polycarbonate (PC) plastic contains ______.
