The rate of rise or fall of the ground surface is known as its?

• A. Elevation
• B. Slope
• C. Gradient
• D. Tilt

Answer: (B)

The rate at which the ground’s height changes over distance is described by slope. Slope captures how steep the terrain is by comparing vertical change (rise or fall in elevation) to horizontal distance traveled. It’s the measure of how quickly elevation changes as you move across the surface, which is exactly what “rate of rise or fall” refers to. Elevation is the absolute height, not the rate of change; tilt isn’t a standard term for this concept in cartography, and while gradient is related, slope is the term used here to express the rate of change in elevation with distance.