Why Do Geologists Classify Rocks

question 5

Multiple Choice

Why do geologists classify rocks?

• A) to determine the chemical makeup of the Earth
• B) because rocks are the key to determining geologic history
• C) because it makes it easier to tell them apart
• D) so that they can tell how old the rock is

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Definitions:

Serotonin

A neurotransmitter involved in regulating mood, sleep, appetite, and digestion, among other functions.

SSRIs

Selective Serotonin Reuptake Inhibitors, a class of medications commonly used to treat depression and anxiety by increasing the levels of serotonin in the brain.

Serotonin

A neurotransmitter important for mood regulation, digestion, sleep, and other bodily functions.