Secondary Data Sources Such as the U

question 82

True/False

Secondary data sources such as the U.S.Census of Retail Trade may be inappropriate for a researcher due to the categories used by the government to study demographics such as age and income.

---

Definitions:

Composite Volcanoes

Volcanic structures formed from alternating layers of lava flows, ash, and other volcanic debris.

Island Arc

Curved chains of volcanic islands located at convergent tectonic plate boundaries, often formed from the subduction of an oceanic plate under another oceanic plate.

Mid-ocean Ridge

An underwater mountain range, formed by plate tectonics, that marks the site of upwelling magma creating new oceanic crust.

Caldera-forming Eruptions

Volcanic eruptions that create large, basin-shaped depressions called calderas, formed by the collapse of a volcano into emptied magma chambers.