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Why is 1. C...

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Why is 1. Cotton is preferred while cooking 2. Plastic vessels should not be used in microwave defrosting. 3. Banners are made of flex material. 4. Handles and bristles of a toothbrush aren't the same. 5. Synthetic Fabric soak less water than natural fabrics do.

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Should the handle and bristles of a toothbrush be made of the same type of plastic material ? Explain your answer.

Q. Assertion :The handle and bristles of a tooth brush should be made of different material. Reason: The handle of a toothbrush should be hard and strong while the bristles should be soft and flexible.

Q. Should the handle and bristles of the toothbrush be made of the same material? Explain your answer.

Q. Fill in the blanks with the correct words.
1. Fibres that are made by human beings are called .................... (natural/synthetic) fibres.
2. .................... (Polyester/Rayon) absorbs sweat.
3. .................... (Nylon/Rayon) are used for making toothbrush bristles.
4. .................... (Spandex/Nylon) has excellent elasticity.
5. Most synthetic fibres .................... (can/cannot) handle heavy loads without breaking.

Should the handle and bristles of a toothbrush be made of the same material? Explain your solution.

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