Discussion
Match the following and select the correct answer from the codes given below :
| List I | List II |
|---|---|
| (a) Segment | (1) A portion of slope on which the angle remains approximately same. |
| (b) Element | (2) An element with downslope increase in angle. |
| (c) Convex element | (3) A portion of slope profile on which the curvature approximately remain constant. |
| (d) Concave element | (4) An element with downslope decrease in angle. |
Answer: A
The correct matching is a-(1), b-(3), c-(2), d-(4).
In Anthony Young's terminology for slope profiles, a segment is a part of the slope on which the angle stays roughly constant (a straight stretch), while an element is a part on which the curvature stays roughly constant.
A convex element is one on which the angle increases downslope, as on the rounded upper part of a hillside. A concave element is one on which the angle decreases downslope, as at the foot of a slope. The other codes swap segment with element or convex with concave.
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