Although, I'm not sure about the entirety of this question, when reviewing claims and evidence, check your sources to make sure they are reliable.
No se pero quiero respuestas perdon
Decomposition of organic matter (i.e. dead plant and animal remains) in soils is an important process in any ecosystem. As organic matter is decomposed, water, carbon dioxide and nutrients are released
Since living organisms require energy and both survival and reproduction... the sun provides the energy for photosynthesis. Cells need sugar as a sources of energy. The cellular respiration is the synthesis of ATP using energy that is being released by the breakdown of sugar to carbon dioxide and water.