What are all natural objects and objects made of?

All objects, both natural and abiotic, are composed of substances. Substances are such a form of manifestation of matter, of which various bodies are composed (air, water, metals, glass, even various gases). To more accurately explain this idea, you need to try. Matter is a kind of fundamental, objective reality that simply exists regardless of whether we know about it or not, it is a set of contents of space and time that determines the characteristics of objects. It is not necessary to understand more deeply such a concept as matter and substance.