List the main external features of soils of different types.

For soils of different types, basic external features are inherent, such as:
1. porosity, namely the presence of pores and cracks in the soil.
2. the number of plant roots in the soil itself and the vegetation cover on the surface.
3. soil color.
4. its structure and consistency (presence of sand or other rocks).
5. density and looseness.
6. rockiness (comparison of the amount of stones and fine earth).
7. humidity.
8. mechanical composition.
9. the set and power of horizons.