Question

Which of the following is darker than the rest of the contour lines, with the altitude values labelled on them?

• A. Index contours
• B. Contour values
• C. Toposheet lines
• D. Contour intervals

Answer 1

The correct option is A Index contours

Index contours are darker than the rest of the contour lines, with altitude values labelled on them. Contour values represent the altitude of a particular contour line. Contour intervals are the difference between successive contours.