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Glossary of Terms

Understory
The layer of vegetation located closest to the ground, beneath a forest canopy.
Uplands
Land or an area of land lying above the level where water flows or where flooding occurs.
Unique Outliers
Data points that are numerically much different than the rest.
Uplifting
In geology, the creation of a mountain or island by the upward movement of the earth’s surface.
Upwelling
The rising of nutrient-rich sea water.
Urbanization
When human population shifts cause an increase in the size and expanse of cities and towns, often destroying or substanitally changing surrounding wild areas.
Ultraviolet
A form of electromagnetic radiation which has a wavelength shorter than that of the violet end of the visible spectrum but longer than X-rays. It is an important part of sunlight although its more harmful effects are blocked by the Earth's ozone layer.

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