Grade 12th passZoology
Should the handle and the bristles of the toothbrush be made of the same material? Why?
Should the handle and the bristles of the toothbrush be made of the same material? Why?
1 Answer
Harshit Singh
Dear Student
The handle and the bristles of the toothbrush should not be made of the same material as the handle should be hard to give a smooth grip and bristle should be soft so that it doesn’t harm the gum of the teeth.
Thanks
The handle and the bristles of the toothbrush should not be made of the same material as the handle should be hard to give a smooth grip and bristle should be soft so that it doesn’t harm the gum of the teeth.
Thanks
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