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I am doing a sci fair project and want to include how they work

2006-12-06 12:26:53 · 1 answers · asked by j a 2 in Science & Mathematics Earth Sciences & Geology

1 answers

Most of the ones in use today rely on measuring the conductivity of a volume of water at a given flow rate over a period of time.

2006-12-06 12:35:49 · answer #1 · answered by Ricky J. 6 · 0 0

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