Concept:Weathering breaks rocks on slopes, and the loose fragments collect downhill due to gravity.
Explanation:On hill slopes, weathering processes dislodge rock fragments from the upper parts.
Gravity then causes these broken rocks to roll or slide downslope.
At the base of the hill or cliff, the falling debris accumulates over time.
This pile of angular rock fragments at the foot of a slope is called scree.
Creep is slow soil movement, a levee is a river deposit, and pebbles are individual stones, not a slope-foot deposit.
Therefore, the correct option is D: scree.
Answer:D. scree