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Multiple Choice

Which statement about topographic maps is not accurate?

Topographic maps use contour lines to convey elevation and how rapidly the land rises or falls. Each line marks points that are at the same elevation, and the spacing between lines shows slope: close lines mean a steep slope, wider spacing means a gentle slope. However, contour lines do not directly give a numeric slope value; you determine slope by considering the contour interval and the spacing between lines. That is why the statement that contour lines indicate elevation and slope isn’t entirely accurate—the slope is inferred from spacing and interval, not read directly from the line itself. The other facts are correct: contour lines never cross, and they can be curved, straight, or a mix depending on the terrain.

Topographic maps use contour lines to convey elevation and how rapidly the land rises or falls. Each line marks points that are at the same elevation, and the spacing between lines shows slope: close lines mean a steep slope, wider spacing means a gentle slope. However, contour lines do not directly give a numeric slope value; you determine slope by considering the contour interval and the spacing between lines. That is why the statement that contour lines indicate elevation and slope isn’t entirely accurate—the slope is inferred from spacing and interval, not read directly from the line itself.

The other facts are correct: contour lines never cross, and they can be curved, straight, or a mix depending on the terrain.