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________ dunes are long, high, sand dunes parallel with the prevailing wind direction.

Which of the following refers to the investigative process by which geologists identify and match sedimentary strata and other rocks of the same ages in different areas?

A ________ is a semiarid, transitional region.

Which best explains the demise of the Farallon Plate?

Hotter objects radiate ________ total energy per unit area than do colder objects.

For a radioactive isotope like Uranium-235, what does the 235 indicate?

A sand ridge connecting an island to the mainland or to another island is a ________.

In 1883, ________ erupted and emitted great quantities of sulfur dioxide gas that cooled the global mean temperature.

________ is the maximum possible damage designation on the Mercalli scale.

A ________ is a semiarid, transitional region.