When a biomass is decaying, decomposers are eating these and use it as their food. As a byproduct from these organisms, they release nitrogen to the earth in the form of nitrates or nitrates increasing the amount of nitrogen present in the Earth. Hope this helps.
cytoplasm
cell membrane
nucleus (unless bacteria)
DNA
mitochondria (unless root hair cell)
Answer: The mole ratio of oxygen to pentane for the combustion of pentane is 8 : 1.
Explanation: The given reaction is a type of combustion reaction.
Combustion reaction is a reaction in which a hydrocarbon reacts with oxygen gas to produce water and carbon dioxide gas.
For the reaction of pentane with oxygen, the balanced equation would be:

In the reaction, 1 mole of
reacts with 8 moles of
gas.
Thus giving us the mole ratio as
Oxygen : Pentane = 8 : 1