A delta is formed by deposition of sediment at the mouth of a river by water fanning out.
After sediments are deposited, they are gradually buried by more sediments.
A delta can lead to the gradual burial of more sediments.
What can lead to the gradual burial of more sediments?
(a) erosion
(b) loose soil
(c) an ocean
(d) a wave
(e) a delta
(f) wind
(g) a lake
(h) flooding