Which soil fraction has particle sizes smaller than 0.002 mm according to the MIT / IS soil classification system?
AFine Sand
BSilt
CClay
DGravel
Explanation
In soil mechanics, particle size classification defines Gravel (> 4.75 mm), Sand (0.075 mm to 4.75 mm), Silt (0.002 mm to 0.075 mm), and Clay (< 0.002 mm or 2 microns).

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