This is the vital part that happens underground, where wastes decay to give rise to new life. Composting helps to bring the regenerative capabilities of the soil to a high peak of natural efficiency, ensuring a bountiful, beautiful and healthy garden. Learning about soil Soil is made of air, water, minerals, and organic matter. Sand is mostly quartz. Sandy soil drains well and doesn't get so muddy or sticky when it's wet, but it usually isn't very fertile because sand contains no plant nutrients.
Silt is also quartz, but the particles are much smaller than sand.
Clay particles are tiny, and much more complex than sand or silt. Clay particles are tiny lattices made up of plates and can hold large amounts of plant nutrients. This is where the billions of soil microorganisms live and do their work, and if they're happy, it's a good soil, regardless of how much clay or sand it has. It's the organic soil component that determines the soil's crumb structure and the pore space that together govern air and water circulation. You can't change the soil's texture, whether it's sandy or clay, but you can improve the structure and the soil's fertility, especially by composting.