It is called humus.
humus
The organic material formed in soil from the decayed remains of plants and animals is called humus. Humus is rich in nutrients and helps improve soil structure and fertility.
Dead and decayed remains of plants and animals, called Humus.
It is called humus.humus
The dark organic rich material formed as a top layer in soil from the decayed remains of plants and animals is called humus. It is a crucial component of healthy soil, enhancing its fertility, structure, and water-retention capacity. Humus results from the decomposition of organic matter, contributing essential nutrients to support plant growth and promoting microbial activity in the soil ecosystem.
Humus.
coal
Decayed matter that becomes part of the soil is called organic matter. This includes leaves, plant material, animal remains, and other organic substances that break down and contribute nutrients to the soil. Organic matter is important for soil fertility and structure.
IIt is called organic matter.
Five
Organic material in soil includes decomposed plant and animal matter such as leaves, roots, and manure. This organic material provides nutrients for plants, improves soil structure, and supports beneficial soil organisms.
Organic material contains organic compounds from the remains of dead organisms and their waste products.
Organic remains comes from animals, foods, etc. Those are examples of Organic remains. So the answer is yes they come from organic things.