which statement describes one characteristic of index contour lines? they appear thinner and lighter than…

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.
Answer
Brief Explanations:
Index contour lines are thicker and darker than other contour lines on a map and are used to show elevation changes. They are not related to roads/paths or map - distance ratios. All contour lines show regions where a difference in elevation exists, and index contours are a type of contour line.
Answer:
They show regions where a difference in elevation exists.