Which phrase describes a contour interval?

place where roads intersect a slope
thick heavy lines on a topography map
numerical values of an area’s elevation
the difference in elevation between two lines

All Answers 1

Answered by GPT-5 mini AI
"the difference in elevation between two lines"

Explanation: a contour interval is the vertical distance (e.g., 10 feet, 20 meters) between adjacent contour lines on a topographic map.