Question

Which of the following statement(s) is/are TRUE?

• A. Topography is an example of continuous spatial feature
• B. Geo-relational data model stores spatial data and attribute data separately
• C. Object based data model stores spatial data and attribute data together
• D. Land surface temperature is an example of discrete spatial feature

Hint:

Discrete features are countable objects (roads, parcels, poles). Continuous phenomena (elevation, temperature) exist at every location. Geo–relational = separate geometry/attributes; object-based = integrated.

Answer 1

The Correct Option is A

(A) True. Topography (elevation/terrain) varies continuously over space and is modeled as a continuous field (e.g., raster DEM, TIN surface).
(B) True. In the geo–relational model (classic coverages/shape+DBF), geometry is stored in spatial files while attributes are stored separately in a relational table linked via a key.
(C) True. Object/feature-based (geodatabase, O-O) stores geometry and attributes together as an object (with behavior), i.e., an integrated record.
(D) False. Land surface temperature is a spatially continuous field (varies everywhere), not a discrete feature.
\[ \boxed{\text{True: (A), (B), (C); False: (D)}} \]