\( \text{Different elevations unite to form one line} \)
\( \text{Different elevations cross one another} \)
\( \text{Closely spaced} \)
\( \text{Closed lines with higher values inside them} \)
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The Correct Option isA
Solution and Explanation
In the case of an overhanging cliff, contour lines representing different elevations will appear to merge and form a single line on the map because the higher elevations are directly above the lower elevations in the horizontal plane.