Soil
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Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions
Surface-water-gley developed in glacial till in Northern Ireland
Soil measuring and surveying device
A, B, and C represent the soil profile, a notation firstly coined by Vasily Dokuchaev (1846–1903), the father of pedology. Here, A is the topsoil; B is a regolith; C is a saprolite (a less-weathered regolith); the bottom-most layer represents the bedrock.
Desertification
Dirt
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Dirt is any matter considered unclean, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty. Common types of dirt include:
Soil
…matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil. Soil consists of a solid collection of minerals and organic matter (the soil…
The great dust heap of London at Battle Bridge in 1836, next to the Smallpox Hospital
Dirty Dicks is a Bishopsgate pub named after Dirty Dick, who once owned it and was notoriously filthy.
Dirt-covered sidewalk in Brooklyn, NYC being swept during a community clean-up