Which of the Following Are Inorganic Toxic Substances Sometimes Found

question 22

Multiple Choice

Which of the following are inorganic toxic substances sometimes found in local water supplies?

• A) Salts and lead
• B) Red tides
• C) Fecal coliform bacteria
• D) Algal blooms
• E) All of these are correct

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Definitions:

Pyroclastic Column

A dense cloud of hot ash, gas, and volcanic matter that rises above a volcano during an explosive eruption.

Lava Dome

A dome-shaped mountain or hill of at least partly solidified lava generally of felsic to intermediate composition.

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.