ICSE Class 10 Geography
Question 7 of 36
Interpretation of Topographical Maps — II — Question 7
Back to all questions 7
Question Question 7
What is meant by index contours? In what way are they useful?
In a contour map, every fifth line in multiple of 20 m is accentuated and is called the Index Contour.
Index contours make the contour map distinct. They also indicate whether the height of the terrain is increasing or decreasing.