Dust and clay are also precious

We call a useless thing like dust but you know that the layer of soil spread on the ground is extremely important for the organism. Soil is the source of food for plants and food for man. A handful of soil contains more bacteria than the earth's human population. The soil absorbs the water that enters the soil, which is why clean water accumulates in the well. Soil contains 3% air, 3% minerals and 3% organic matter. Clay rocks are formed by breaking down. The earth's crust is made up of six layers of clay.

Different colors and types of clay are found on earth. The life cycle of humans and organisms starts from clay. Bacteria in the soil make useful substances for plants. The soil contains silt. Silt is clay. It is made up of very fine particles. Silt stores the nutrients in the soil. Alluvial soils are more fertile.

Soil is formed by the heat of the sun, wind, and rain, and by the wear and tear of the earth, including the mountains above the earth. The earth's surface is constantly changing. The soil has to be taken care of to cultivate useful grains, pulses etc. The top layer is plowed every year.