Which of the following decompose the remnants of plants into $CO_2$ and water?

Raw material for decomposition represented by dead organic matter is

Osmotrophs belong to

Which of the following is not a step of decomposition?

Identify the processes $P, Q,$ and $R$ in the following descriptions:
$I -$ The process of breaking down detritus into smaller particles $- P$
$II -$ Bacterial and fungal enzymes degrade detritus into simpler inorganic substances $- Q$
$III -$ Water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts $- R$
Select the correct option for $P, Q,$ and $R$.

Decomposers (bacteria,fungi) perform the process of decomposition through which of the following actions?