Question

How do contour lines help in identifying slope of a land ?​

Answer 1

Answer:

Contour lines and their shapes represent the height and slope or gradient of the landform. Closely spaced contours represent steep slopes while widely spaced contours represent gentle slope. When two or more contour lines merge with each other, they represent features of vertical slopes such as cliffs or waterfalls.

Answer 2

Answer:

The horizontal distance, also known as the horizontal equivalent (HE), is large when the slope is gentler and decreases with increasing slope gradient. A contour line is drawn to show places of equal heights. Contour lines and their shapes represent the height and slope or gradient of the landform.