The Lowest Union Densities in the U

question 39

True/False

The lowest union densities in the U.S. can be found in the Southwest and Northeastern states.

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Definitions:

Volcanic Glass

A shiny and smooth rock formed when molten lava cools rapidly without crystallizing.

Cooling

The process of losing heat, leading to a decrease in temperature; can refer to geologic formations solidifying from molten states.

Felsic Crystals

Refers to light-colored minerals rich in elements such as aluminum, potassium, silicon, and sodium, commonly found in continental crust rocks.

Mafic Crystals

Minerals rich in magnesium and iron that crystallize from basaltic magmas, typically dark in color.