When contours are closely spaced in higher altitudinal zone and progressively widely spaced in lower altitudinal zone, the resultant is _________.

Correct option is D

Introduction
This contour configuration describes a Convex Slope.
· Closely spaced contours in the higher (upper) altitudinal zone indicate a steeper slope at the top.
· Widely spaced contours in the lower (bottom) altitudinal zone indicate a gentler slope at the bottom. A slope that is steep at the top and gentle at the bottom is defined as a Convex Slope.
Information Booster
· Contour Pattern: Closely spaced contours at higher elevation and progressively wider spacing at lower elevation.
· Steepness: Indicates that the slope is steeper near the summit and becomes gentler toward the base.
· Profile Shape: If viewed in cross-section, the slope surface bulges outward (convex).
· Opposite: The opposite, a Concave Slope (steep at the bottom, gentle at the top), is indicated by widely spaced contours at the top and closely spaced at the bottom.
· Drainage: Often associated with areas where erosion is dominant at the top and deposition occurs at the bottom.
Additional Points
· Steep Slope: Contours would be uniformly closely spaced throughout the entire altitudinal range.
· Gentle Slope: Contours would be uniformly widely spaced throughout the entire altitudinal range.
· Concave Slope: Contours would be widely spaced in the higher altitudinal zone and progressively closely spaced in the lower altitudinal zone (gentle at the top, steep at the bottom).