Concept:Slow downslope movement of soil under the influence of gravity.
Explanation:Soil creep is a very slow and gradual movement of soil particles down a slope.
As the soil creeps, it exerts pressure on objects embedded in the ground, such as tree trunks and poles, causing them to lean or tilt.
When the moving soil meets a wall or barrier, it accumulates and piles up behind it.
These features are clear signs of continuous, slow soil movement.
Sudden mass movements like mud flow, rock slide, or landslide do not typically cause uniform tilting and soil piling behind walls.
Therefore, the given effects are characteristic of soil creep.
Answer:B. Soil creep