Place the Steps of the Water Puri?cation Process in Order

question 81

Multiple Choice

Place the steps of the water puri?cation process in order.

• A) Aeration, ?ltration and settling, chemical disinfection, release into a water reservoir
• B) Chemical disinfection, aeration, ?ltration and settling, release into a water reservoir
• C) Filtration and settling, chemical disinfection, aeration, release into a water reservoir
• D) Release into a water reservoir, aeration, ?ltration and settling, chemical disinfection

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Definitions:

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A contract that allows for the use of an asset but does not convey ownership rights of the asset to the lessee.

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Present Value

The current worth of a future sum of money or stream of cash flows, given a specified rate of return.

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A financial product that pays out a fixed stream of payments to an individual, typically used as part of a retirement strategy.