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In the classification of soil particles, which type is considered the smallest?
A
Gravel
B
Clay
C
Silt
D
Sand
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Understand the classification of soil particles: Soil is composed of different types of particles, each varying in size. The main categories are gravel, sand, silt, and clay.
Gravel is the largest type of soil particle, typically larger than 2 mm in diameter.
Sand particles are smaller than gravel, ranging from 0.05 mm to 2 mm in diameter.
Silt particles are finer than sand, with diameters ranging from 0.002 mm to 0.05 mm.
Clay particles are the smallest, with diameters less than 0.002 mm. Due to their small size, clay particles have a large surface area relative to their volume, which affects their physical and chemical properties.