Secondary Disinfection of Drinking Water Is Necessary to

question 11

Multiple Choice

Secondary disinfection of drinking water is necessary to

• A) maintain sufficient residual in the water distribution system to inhibit microbial growth.
• B) prevent the formation of biofilms on pipes in the water distribution system.
• C) neutralize taste- and odor-producing organic compounds.
• D) kill Cryptosporidium and other resistant pathogens.

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Definitions:

Annual Fatalities

The total number of deaths occurring within a year, often used in the context of road traffic, workplace accidents, or diseases.

Interaction

In statistics, refers to the situation where the effect of one independent variable on a dependent variable differs depending on the level of another independent variable.

Regression Equation

An equation that represents the relationship determined by regression analysis, predicting the dependent variable based on independent variables.

Dummy Variable

A variable used in regression analysis that assumes the value 0 or 1 to indicate the absence or presence of some categorical effect.