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Bookmark or Share- Soil Composition - National Geographic SocietyENCYCLOPEDIC ENTRY. Soil Composition. Soil is one of the most important elements of an ecosystem, and it contains both biotic and abiotic factors. The composition of abiotic factors is particularly important as it can impact the biotic factors, such as what kinds of plants can grow in an ecosystem. Grades. 5 - 8. Subjects.
- Web Soil Survey - HomeSoil Geography. 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. NRCS has soil maps and data available online for more than 95 ...
- What is Soil? | Natural Resources Conservation ServiceSoils perform vital functions to sustain plant and animal life, regulate water flow, filter and buffer pollutants, cycle nutrients, and provide physical stability and sort. This definition is from the Soil Science Society of America.
- Soil - WikipediaSoil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, 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 measuring and surveying device.
- About Soils | Soil Science Society of AmericaWhat is soil science? Soil is a mixture of minerals, dead and living organisms (organic materials), air, and water. These four ingredients react with one another in amazing ways, making soil one of our planet’s most dynamic and important natural resources. Soil is used by people in many ways.
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