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← ScienceWhich consequence results when a water purification membrane experiences fouling?
A)Lower water flux rate occurs✓
B)Selective ion passage is improved
C)Membrane bulk strength increases
D)Biofilm formation chance reduced
💡 Explanation
Fouling causes a flux decline because pore blocking via **cake layer formation** increases resistance to flow, therefore water passage declines, rather than improving; increased flux declines are the outcome rather than membrane strengthening.
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