Concept:A slope can be identified from contour spacing on a map.
Explanation:Along Line A-B, the contours are closer together at the foot of the slope, meaning the lower part is steep.
Towards the top, the contours become more widely spaced, meaning the slope becomes gentler.
This pattern of being steep at the bottom and gentle at the top defines a concave slope.
It cannot be a uniform slope because the spacing changes.
It is also not a dip slope, as dip slope refers to rock structure, not contour shape shown on a map.
Answer:C. concave slope
