PLS HELP !!
What process makes it possible for grasses and small plants to establish themselves during primary succession?
A. Lichens and mosses break down rock to create a thin layer
of soil.
B. Decomposers like fungi and bacteria break down dead animals to return nutrients to the soil.
C. Trees lose their leaves, providing a layer of organic material on the ground.
D. Climax communities die out, providing a place for the grass and small plants to grow.
