What is a significant difference between geodetic surveys and plane surveys?

The correct answer highlights a fundamental distinction between geodetic surveys and plane surveys. Geodetic surveys take into account the curvature of the Earth, recognizing that the Earth is not a perfect sphere but an oblate spheroid. This curvature can significantly affect measurements over large distances, especially when the area being surveyed is extensive.

In contrast, plane surveys operate under the assumption that the Earth is flat, which is a valid approximation for small areas. This allows plane surveys to simplify calculations and measurements without needing to account for the Earth's curvature. However, this simplification can lead to inaccuracies when applied over larger distances.

By considering the Earth's curvature, geodetic surveys provide more precise positioning and elevation data, essential for large-scale mapping and navigation systems. This recognition is crucial in fields such as geodesy, satellite positioning, and large infrastructure projects, where even minor inaccuracies can have significant implications.