Question

1. why are different data layers used in gis systems for map creation?

a. to simplify geographic information by removing details
b. to increase complexity and make maps harder to read
c. to only display one type of geographic data at a time
d. to create maps that show multiple types of information for analysts

Explanation:

• Option a: Removing details is not the purpose of data layers; GIS aims to manage and analyze data, not simplify by removing details.
• Option b: Increasing complexity to make maps harder to read is illogical as GIS is for better data representation and analysis.
• Option c: Data layers in GIS are used to combine multiple types of data, not just display one type at a time.
• Option d: GIS data layers allow combining different types of geographic information (like topography, land use, infrastructure) to create comprehensive maps for analysts to study multiple aspects together.

Answer:

d. To create maps that show multiple types of information for analysts