<em>Carbon cycle</em><em> is the cyclic example that carbon pursues on earth. By following the carbon cycle we can likewise contemplate the progression of energy as the energy required for the survival is put away between carbon particles organic matter as proteins and fats.</em>
Answer: <em>D. Both require fixation in order to convert molecules..</em>
Explanation:
The main source of expulsion of carbon from the environment is when
is consumed by plants during photosynthesis. The restock is done through respiration, burning of petroleum derivatives, disintegration and chemical reaction that give out
.
Nitrogen is accessible in plenitude in our climate (78%), be that as it may, this nitrogen is futile to creatures and plants until it is changed over to ammonia and other nitrogen mixes. This transformation procedure is called Nitrogen Fixation.
Also, through a procedure is called denitrification, when these plants and creatures are dead, this ammonia is separated by microbes and growths and came back to the environment as Nitrogen.