Which of the Following Treatment Methods Is Used to Remove

question 2

Multiple Choice

Which of the following treatment methods is used to remove hydrogen sulfide?

• A)softeners
• B)neutralizing tanks
• C)activated charcoal filters
• D)ozone injection

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Definitions:

Lava Flow

Magma that erupts onto the surface and flows downhill from the vent; also the solidified body of rock formed by this magma.

Pyroclastic Flow

A fast-moving current of hot gas and volcanic materials that flows down the sides of a volcano during an explosive eruption.

Eruption Column

A column of gases, ash, and volcanic rock emitted into the atmosphere during a volcanic eruption, which can affect climate and aviation.

Pyroclastic Flow

A rapid stream of heated gas and volcanic substances flowing down a volcano's slopes amid an explosive eruption.