The pores of filter for filtration should be between in diameter is __

1.	The pores of filter for filtration should be between in diameter is _________
A.	0.1 0.55 m
B.	0.2 0.45 m
C.	0.3 0.45 m
D.	0.3 0.50 m
Answer» C. 0.3 0.45 m

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