Question

what is the most important source of spatial data in GIS​

Answer 1

Answer:

1 Natural Earth Data. ...

2 Esri Open Data. ...

3 USGS Earth Explorer. ...

4 OpenStreetMap. ...

5 NASA's Socioeconomic Data and Applications Center (SEDAC) ...

6 Open Topography. ...

and there are many more..

Answer 2

The most important source of spatial data in GIS includes hard copy maps also known as analog maps, aerial photographs, point data, samples from surveys, remotely-sensed imagery, etc.

Explanation:

• GIS refers to the data and map information as different layers of the data. These sources exist for both the spatial and attribution data.

• The data received from these sources are referred to geographic features as a point, line, etc.

• There are two kinds of raster data which include continuous and discrete.

• The example of discrete includes population density whereas continuous consists of temperature etc.

Learn more about GIS​

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