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Question
Under which of the following circumstances can the contour lines of different elevations intersect each other?
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A.
Cave
B.
Steep slope
C.
Valley
D.
River
Answer ( Option A)

Cave

Solution

Characteristic of the contour lines are :
1. Two contour lines of different elevation cannot cross each other.
2. Contour lines of different elevations can unite to form one line only in case of a vertical cliff.
3. However, contour lines of different elevations can intersect only in case of an overhanging Cliff.
4. Contour lines crosses a valley or rigde line at 90°
5. Closed contours show either hill or pond.

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