Match the columns I and II and choose the correct combination from the options given.

Options

A. a-1,b-2,c-3,d-2
B. a-3,b-2,c-1,d-1
C. a-3,b-1,c-2,d-2
D. a-3,b-1,c-2,d-1

Answer

D

Explanation

Stratification is the formationof vertical layer where vegetation is dense.
.Vertical distribution of different species ocupying different levels is called stratification. E.g : trees occupy the top vertical strata or layer of a forest , shrubs the second layer and herbs and grasses occupy the bottom layers.