Assertion: soil | /r/MadeOf | matter
Facets:
Source sentences:
text: High sand soils have low CEC values with the number increasing as the soil contains more clay, silt and organic matter.
text: It differs from fluid mechanics and solid mechanics in the sense that soils consist of a heterogeneous mixture of fluids (usually air and water) and particles (usually clay, silt, sand, and gravel) but soil may also contain organic solids and other matter.