Biology, asked by shanikanchila80, 11 months ago

back flow means ( food ) ?​

Answers

Answered by Komal11111
1

Backflow is caused by cross-connections that have the potential of allowing contaminants into the drinking water system. Back siphonage can occur when the pressure in a tank or water trough is lower than the water system's pressure. This could allow the influx, or pulling, of contaminated water into the system.

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