Drywash = dry, steep sided, stream channel with polished walls, created by dried up flash floods in which sand laden water polished the walls and created grooves.
a. true
b. false

Respuesta :

The answer is false. Any procedure that eliminates minute (often microscopic) filter particle matter or extremely low amounts of dissolved matter from water is referred to as "water polishing." The procedure and its meaning vary depending on the context.

For example, an aquarium filter manufacturer may assert that their filters polish water by trapping "micro particles" inside nylon or polyester pads, while a chemical engineer may use the term to describe the process of removing magnetic resins from a solution by passing the solution over a bed of magnetic particles. In this respect, whole-house water filtering systems are also known as "water polishing."

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