A Contour line Joins located having the same height above the mean sea level. The following is a mean contour plot of geographical region. Contour line are shown 25 m intervals in this plot.
Travelling form P to Q Choose the correct statement.
1
A person descends 75 m and then ascends 50 m
2
A person ascends 75 m and the descends 50 m
3
A person descends 50 m and then ascends 25 m
4
A person ascends 50 m and then descends 25 m