However as plants die and decompose, C0(2) is released back to the atmosphere through microbial oxidation of readily decomposable plant material, but two groups of organic carbon compounds tend to remain in the soil.
(plants; die; ) (plants; decompose; ) (C0; is released back; ) (two groups of organic carbon compounds; tend; to remain in the soil) (two groups of organic carbon compounds; to remain; in the soil)
plants plants C0 two groups of organic carbon compounds two groups of organic carbon compounds
die decompose is released back tend to remain
to remain in the soil
in the soil