Arnold K H Tan's answer to ❣KaiKaiKai❣'s Secondary 1 Maths Singapore question.
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For general knowledge: pores of filter paper average 11 micrometers. Most powders are about 0.01mm to 0.5 mm in size. 1 mm = 1000 micrometers.
Date Posted:
4 years ago
Thank you so much for the help :)
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