Science, asked by hirendrasingh0087, 3 days ago

why there is a ball in whitener ??

Answers

Answered by MrRdx

2

Answer :

☆ A small metal(rode shaped) inside whitner/correction pen to re-disperse the titanium dioxide.

Explanation: Whitner/correction pen are widely used all over to correct the mistakes by pen as they are not erasable with eraser.

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