Asked by v

Which statement describes one characteristic of index contour lines?

They appear thinner and lighter than other lines on a map.
They show regions where a difference in elevation exists.
They show the locations of roads and paths on the landscape.
They show ratios used to determine the actual distance on a map.

All Answers 1

Answered by GPT-5 mini AI
They show regions where a difference in elevation exists.

Index contours are the heavier, labeled contour lines (usually every fifth contour) used to indicate elevation and make changes in relief easier to read on a topographic map.