Stratification
01
the process of arranging people into social classes or ranks
例
Industrialization led to the stratification of urban society.
02
the practice of placing seeds in moist sand, sawdust, or peat moss to preserve them or encourage germination
例
Apple seeds require stratification before they will sprout.
03
an arrangement in distinct layers
例
The geologist studied the stratification of sedimentary rocks.
04
the process of forming or depositing in layers
例
The river delta shows stratification of silt and sand.



























