Portal:Water/Did you know/7

Portal
Talk

< Portal:Water‎ | Did you know

DYK Question Mark

...that total dissolved solids, a class of water pollutants, is useful as an indicator of aquatic biota health, yet harmful to the plumbing of aquaria and hot tubs?

...that a Navy shower is a method of showering that conserves both water and energy?

Retrieved from "https://en.wikipedia.org/w/index.php?title=Portal:Water/Did_you_know/7&oldid=1177163681"