Why Might Softened Water Not Be Good for Some One

question 96

Multiple Choice

Why might softened water not be good for some one who is trying to reduce their dietary sodium ion intake?

• A)The potassium used in the softener to replace the calcium and magnesium ions increases the sodium retention in the body.
• B)Water softeners work by replacing the calcium and magnesium ions of the water with sodium ions; softened water contains increased levels of sodium ions.
• C)The softened water leaches sodium from the body,so a person might not be getting the dietary recommended levels of sodium.
• D)A person needs a certain level of calcium and magnesium in the water to help excrete the sodium from their body.

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Definitions:

Patent

A governmental right granted to an inventor, giving the exclusive right to make, use, sell, and import an invention for a certain period of time.

Marginal Cost

The cost added by producing one additional unit of a product or service, an important concept in economics for determining the optimal level of production.

Monopolist

A single firm or entity that is the exclusive provider of a good or service, thus controlling its market price.

Lerner Indices

Measures of a firm’s market power based on the difference between price and marginal cost, normalized by the product's price.