Acontour interval of 20 feet means that every foot on a given topographic map represents 20 feet on the earth. true or false? i think the answer is true, but then again i didn't really understand the lesson. you for your

False

Contour lines on a map are lines of constant elevation above sea level. The "contour interval" is the vertical distance represented by adjacent contour lines.

The horizontal distance between contour lines on a map depends on the slope of the terrain. Lines are closer together when th slope is steep. The amount of distance on the ground that a distance on the map represents is determined by the scale of the map, not the contour interval.

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explanation: