Which is NOT listed as a soil texture?

Which is NOT listed as a soil texture?

• A. Sand
• B. Silt
• C. Clay
• D. Gravel

Answer: (D)

In soil science, texture is defined by the relative amounts of the fine earth particles—sand, silt, and clay. These three sizes make up the texture classes used to describe how a soil feels and behaves, affecting water movement, nutrient retention, and workability. Gravel is a coarser particle size and is not part of the texture classification; it’s considered a coarse fragment or rock fragment that sits separate from the texture concept. So while a soil can be described as gravelly or contain gravel, the actual texture is determined by the proportions of sand, silt, and clay.

In soil science, texture is defined by the relative amounts of the fine earth particles—sand, silt, and clay. These three sizes make up the texture classes used to describe how a soil feels and behaves, affecting water movement, nutrient retention, and workability. Gravel is a coarser particle size and is not part of the texture classification; it’s considered a coarse fragment or rock fragment that sits separate from the texture concept. So while a soil can be described as gravelly or contain gravel, the actual texture is determined by the proportions of sand, silt, and clay.