Question

Which items are used to show elevation, relief, and slope on a topographic map? Check all that apply.

topographic lines
contour lines
index contours
topographic symbols
contour interval
topographic interval
index topography

Answer 1

Correct answers: topographic lines, contour lines, index contours, contour interval.

- Topographic lines = contour lines (lines of equal elevation) — show elevation, relief and slope.
- Contour lines — the basic lines that trace constant elevation.
- Index contours — the heavier/labeled contour lines used to read elevations quickly.
- Contour interval — the vertical distance between adjacent contour lines; needed to determine slope and elevation change.

Not correct: topographic symbols (show features, not elevation), topographic interval and index topography (not standard terms).