Which of the Following Substances Is Used to Supply Some

question 159

Multiple Choice

Which of the following substances is used to supply some of the fuel needed by the brain only after the body has been fasting for a while?

• A) ketones
• B) glycerol
• C) fatty acids
• D) amino acids

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Definitions:

Eruption Column

A column of gases, ash, and volcanic rock that is ejected into the atmosphere during a volcanic eruption.

Tephra

Fragmented material produced by a volcanic eruption regardless of size, composition, or emplacement mechanism.

Gas Flux

The rate of flow of gases into or out of a surface area.

Unweathered Lava

Refers to lava that has not been exposed to weathering processes and therefore maintains its original texture and composition.