Slope Is Calculated for a Digital Elevation Model By

question 8

Multiple Choice

Slope is calculated for a digital elevation model by:

• A) Using the native value assigned to each grid cell in the National Elevation Dataset
• B) Computing the direction of steepest descent from each grid cell
• C) Dividing the value for run by the value for rise
• D) Multiplying the value for rise by the grid cell resolution

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Definitions:

Lichen

A symbiotic organism comprised of a fungus and an alga or cyanobacterium, living together on rocks and trees.

Batrachochytrium Dendrobatidis

A pathogenic fungus causing chytridiomycosis, which has been linked to dramatic declines in amphibian populations worldwide.

Chytrid

A type of fungus belonging to the phylum Chytridiomycota, notable for being parasitic or pathogenic in some aquatic species.

Parasite

A living entity that resides within or on a host organism, deriving its nourishment to the detriment of the host.