Here's why:
* Organic matter is defined as material that is derived from living organisms, primarily composed of carbon and hydrogen, along with other elements like oxygen, nitrogen, and phosphorus.
* Living organisms themselves are composed of organic molecules (like carbohydrates, proteins, lipids, and nucleic acids).
* Remains of organisms like dead plants, animal carcasses, and waste products also contain organic matter.
While the biosphere encompasses other components like the atmosphere, hydrosphere, and lithosphere, these components are primarily inorganic.
