A contour line joins locations having the same height above the mean sea level. The following is a contour plot of a geographical region. Contour lines are shown at $25$ m intervals in this plot.
The path from $P$ to $Q$ is best described by
question is different please see clearly
The line starts from $P$ which is inside $575$ contour line.
Then line crosses the contour lines $575\rightarrow550\rightarrow525\rightarrow500$. Down
Then it crosses the contour lines of $500\rightarrow525\rightarrow550\rightarrow575$ Up
Then it crosses the contour lines $575\rightarrow550$ and then stops at $Q$ which is inside the contour line $525$. Down
$\therefore$ Option C Down up Down is the correct answer.