Concept:An even or uniform slope has contour lines that maintain the same spacing throughout.
Explanation:Contour lines connect points of equal height on a map.
The distance between contour lines represents the steepness of the slope.
When contours are equally spaced, the slope rises at a constant rate.
This means the degree of steepness is the same from the bottom to the top of the slope.
Closely spaced contours indicate a steep slope.
Irregularly spaced contours show a changing slope.
Concentric contours represent a hill or depression, not an even slope.
Therefore, equal spacing between contour lines defines an even slope.
Answer:D. equally placed.