-->

Topographical Maps

Question
CBSEENGE11011698

Write short notes on :

 Contours

Solution
Contours : Contouring is a standard method of representing relief. Contours are imaginary lines drawn on the map which join points having the same elevation above the mean sea level. The method of showing relief through contours is perhaps the most precise, useful, common and popular. Contours are drawn on the basis of actual survey conducted in the field. Contours are drawn on different intervals such as 20, 50, 100 metres above mean sea level.