GENERAL KNOWLEDGE

Detailed explanation-1: -Soil texture is defined as the distribution of mineral particles less than 2 mm in diameter (fine earth fraction): clay (<0.002 mm), silt (0.002–0.63 mm) and sand (0.063–2 mm). Particles larger than sand are considered coarse fragments, and include gravel (2–64 mm), cobbles (64 mm-256), and boulders (>256 mm).

Detailed explanation-2: -Particle size analysis (PSA) determines the relative amounts of sand, silt and clay in a soil. These size fractions are the mineral component of a soil and together determine soil texture.

Detailed explanation-3: -Particle size distribution, also known as gradation, refers to the proportions by dry mass of a soil distributed over specified particle-size ranges. Gradation is used to classify soils for engineering and agricultural purposes, since particle size influences how fast or slow water or other fluid moves through a soil.

Detailed explanation-4: -The major component in soils is rock particles: sand, silt & clay. These particles form over time from weathering and erosion. The particles are classified by size: sand is the largest (. 05-2.0mm) and the individual grains can be seen by the naked eye; silt is smaller (.