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Which data model is generally better suited to representing a continuous surface such as rainfall?

  • A.topological
  • B.relational
  • C.raster
  • D.vector

Answer: C

Correct answer: raster

A continuous surface has a value everywhere, and a raster stores exactly that - one value per cell over the whole extent. Vector data suit discrete objects with definite boundaries: a road, a parcel, a building. Rainfall has no boundaries of its own, so forcing it into polygons would invent them.

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