The rate of decomposition is faster in the ecosystem due to following factors $EXCEPT$
Detritus richer in lignin and chitin
Detritus rich in sugars
Warm and moist environment
Presence of aerobic soil microbes
Which of the food chains directly depends on solar radiations
Food chain is a series of population, which starts with producers. It is concerning with
Detritus food chain starts from
$A$ : In secondary productivity, no new organic matter is formed.
$R$ : It is only utilisation of part of food manufactured by primary producers in building of consumer biomass.
Energy flow in ecosystem is