The spatial interpolation features of a geographic information system (GIS) would be most useful when a researcher needs to

A. estimate data at a particular point where it has not been measured.
B. use a large-scale map but only a small-scale map of the area of interest is available.
C. detect energy at a wavelength that is not detected directly by an existing satellite.
D. identify the optimal route through an area.


Answer: A

Environmental & Atmospheric Sciences

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