Final answer:
Wider spaces between contour lines on a topographic map signify that the elevation change is gradual, not steep. Close contour lines indicate steep terrain, while wider lines indicate gentler slopes.Option B is the correct answer.
Step-by-step explanation:
Wider spaces between contour lines on a topographic map indicate that the elevation change is gradual. When you see contour lines that are farther apart, it means there is a less steep incline or decline in the terrain. Conversely, when contour lines are closer together, it signifies a steep elevation change.
Essentially, the density of the contour lines correlates with the steepness of the terrain - closer lines equate to steeper terrain, and wider lines to more gentle slopes. This concept helps geographers, hikers, engineers, and others to understand the topography of a region by merely looking at a map.
Understanding contour lines on a topographic map is crucial for assessing terrain. Widely spaced lines imply a gradual slope, facilitating easier traversal. Conversely, closely packed lines denote steep inclines, potentially posing challenges. This visual representation aids hikers, geologists, and planners, offering insights into the landscape's ruggedness and assisting in making informed decisions regarding navigation and land use.