Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): A Global Positioning System (GPS) links spatial data with descriptive attributes about a particular feature on a map.
Reason (R): The information is stored as attributes of the geographically represented features.
In light of the above statements, choose the correct answer from the options given below.
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Always keep the distinct roles of geographic technologies clear:
- GPS = Positioning and coordinate capture.
- GIS = Database integration linking spatial map features with attribute tables.
- Remote Sensing = Information capture from a distance (satellites/aircraft).
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
(A) is true but (R) is false.
(A) is false but (R) is true.
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The Correct Option isD
Solution and Explanation
Step 1: Understanding the Concept:
To analyze spatial and geographic data, we must distinguish between the functions of a Global Positioning System (GPS) and a Geographic Information System (GIS).
GPS is a satellite-based navigation system used to determine precise coordinates (latitude, longitude, altitude) on the Earth's surface, while GIS is a database system used to store and manage spatial data. Step 2: Detailed Explanation:
Let us evaluate the two statements:
- Assertion (A): The system designed to store, manage, manipulate, analyze, and display geographically referenced spatial data and link it with descriptive attribute tables is a Geographic Information System (GIS), not a GPS.
GPS only provides coordinate data for points, lines, or polygons; it does not store, link, or manage database attributes for map features.
Therefore, Assertion (A) is incorrect because it attributes the core functions of GIS to GPS.
- Reason (R): In geographic data management, information is structured into two main components: spatial data (geographic coordinates defining shape and location) and attribute data (descriptive properties stored in tables linked to those spatial features).
For example, a parcel of land represented as a polygon (spatial data) is linked to a database table storing the owner's name, soil type, and land use (attribute data).
Therefore, Reason (R) is correct.
Since Assertion (A) is false and Reason (R) is true, option (D) is the correct choice. Step 2: Final Answer:
Assertion (A) is false but Reason (R) is true.
