The size of silt particles in ISSS system is:

Correct option is C

· As per the ISSS (Indian Society of Soil Science) soil texture classification:
· Sand: > 0.02 mm
· Silt: 0.02 mm to 0.002 mm
· Clay: < 0.002 mm
· Silt particles:
· Are smaller than sand, larger than clay.
· Have smooth texture and low water retention.
· Important in determining soil texture and fertility.