Is matter around us pure
Define colloid
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I hope this helps you, if you not in class 7th, i mean you are in senior classes then you don't call on this number if you are in class 7th call me on this number
8160634045.
From,
Ayushi Tiwari,
Thankyou!
Warning;
Only that call on this number who ask this question, without him or her don't call on this number.....
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