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- Soil - Wikipedia
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 distinguish dirt from soil by restricting the former term specifically to displaced soil
- Soil | Definition, Importance, Types, Erosion, Composition, Facts . . .
Soil is one of the principal substrata of life on Earth, serving as a reservoir of water and nutrients, as a medium for the filtration and breakdown of injurious wastes, and as a participant in the cycling of carbon and other elements through the global ecosystem
- Web Soil Survey - Home
Web Soil Survey (WSS) provides soil data and information produced by the National Cooperative Soil Survey It is operated by the USDA Natural Resources Conservation Service (NRCS) and provides access to the largest natural resource information system in the world
- What Are Soils? | Learn Science at Scitable - Nature
Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water Soil minerals are divided into three size classes — clay, silt, and sand
- What Is Soil? An Intro To What It Is And Isn’t - Epic Gardening
Soil is unconsolidated mineral particles that exist on the immediate earth’s surface It supports plant growth and interacts directly with the geology below it In interaction with soil organisms, the soil supports the food web, which provides nutrients that are the basis of all life on earth
- DOE Explains. . . Soil - Department of Energy
Soil is a complex mixture of organic material, minerals, air, and water It ranges from sandy, ocean-weathered beaches to soggy peat bogs and permafrost soils Soils are a vital component of terrestrial ecosystems, and provide habitat for a large diversity of plants, animals, and microorganisms
- What is soil? | ISRIC
Soil is sometimes referred to as the ‘skin of the earth’ Soils develop over time under the influence of chemical, physical and biological processes They develop where rocks and sediments (lithosphere) are influenced by flora and fauna (biosphere), water (hydrosphere) and climate (atmosphere)
- What is the soil? - The Institute for Environmental Research and Education
Soil erosion is the removal of topsoil by wind or water It is a significant problem because it degrades soil quality, reduces agricultural productivity, pollutes waterways, and contributes to land degradation
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