It gets blown around and piles up at different depths.
Ideally, these should be drilled to different depths from three to six feet below the surface.
Objects differing only in their contrast with a background appear to be at different depths.
However, the shrimp live at a different depth than the salmon.
Her eyes had different depths, sometimes they seemed perfectly flat.
The game's play area has two different depths - the world map and the location maps.
It can also be caused by rapid transitions in the movie between scenes of very different depth.
Grooves of different depths could be used to vary the range.
The resulting construction is close to the density of water, thus making it easier to move in different depths.
The smaller church is farther away from us than the house; three trees also occupy different depths.