Ecosystem

Write two examples of decomposers.
The pyramid of biomass represents the relationships that exist between the quantity of living matter (biomass) at different trophic level. In the terrestrial ecosystem, the biomass progressively decreases from producers to top carnivores. 
In which ecosystem the biomass progressively decreases form producers to top carnivores?
Give reasons:
Sun is the source of energy in DFC.
DFC is major conduit of energy in aquatic ecosystem.
Nitrogen fixation is by lighting in the clouds and also by
The leaves are spine-like usually in