The Use of ________ to Treat Drinking Water, Which Began

question 28

Multiple Choice

The use of ________ to treat drinking water, which began in 1913, reduces the incidence of waterborne diseases.

• A) coagulation
• B) chlorination
• C) filtration
• D) UV irradiation

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Definitions:

Paper Currency

Legal tender issued by a government or central bank in the form of paper notes.

Negotiable Instrument

A signed document promising a sum of payment to a specified person or the assignee which is transferable by endorsement.

Sum Certain

A specific, agreed-upon amount of money owed under a contract that is not subject to change.

Unconditional Promise

A commitment or guarantee that is not subject to any conditions or contingencies.