Consider a contour map (topographic map) for the region around a hilltop as show

Question

Consider a contour map (topographic map) for the region around a hilltop as shown below 10 m 15 m 20 m 25 m 25 m 20 m is 15 m 10 m la) a) What is contour line on a topographic map? b) In the above example of a hill, what is constant along a specific contour line? c) What is the height difference between any two consecutive contour lines? d) What does the spacing of contour lines tell about the steepness of the land? Between what two contour lines on the map is the hill the steepest and in what direction up the hill would a path have the steepest ascent? (Hint: Recall mountain trails and switchbacks in the mountains.) e)

Explanation / Answer

a) Contour line in a topographic map is a line that joins points of same elevation

b)elevation is constant along a specific contour line

c) height difference between any two consecutive lines is 5 m

d) The closer the spacing of contour lines, the steeper the slope is and the farther the contour lines are spaced, the gentle the space is

f)since contour lines 20m and 25m are closeely spaced compared to other contour lines, that is the steepest ascent

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