For the recycling of materials,which one is most necessary?

In the given statements, select the correct option for the process of decomposition.
$(1)$ Moist environment favours decomposition.
$(2)$ Low temperature and anaerobiosis inhibit decomposition.
$(3)$ Decomposition is slower, if detritus is rich in nitrogen.
$(4)$ Decomposition is quicker if detritus is rich in chitin.
$(5)$ Warm environment favours decomposition.

The cycling of nutrients in an ecosystem will stop if which of the following are removed?

$A$: Detritus food chain begins with detritus.
$R$: Detritivores like fungi and bacteria are major decomposers in such food chains.

The process by which humus is degraded by some microbes to release inorganic nutrients is known as

$A$: Warm and moist environment can enhance the rate of decomposition.
$R$: Warm and moist climate leads to create anaerobic conditions which promote decomposition.