The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides.

The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides. Correct Answer True

The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides. The same is true in case of a lower horizontal plane that cuts a valley.

Related Questions

Which of the following statements is/are true? i. Contour lines cross valley line at 90°. ii. Contour lines cross ridge line at 90°. iii. Contour lines are widely spaced where ground has steep slope.