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UPSC Prelims 1986 · Agriculture · Soils
Which of the following is the correct order of increasing size of the grains of soil particles? A. Clay B. Silt C. Sand D. Gravel
- (a) A, B, C, D
- (b) D, C, A, B
- (c) B, C, A, D
- (d) C, D, B, A
Show the answer and explanation
Answer: (a) A, B, C, D
Clay (<0.002 mm) < silt < sand < gravel.
Why the others are wrong
(b) Starts with gravel.
(c) Puts silt before clay.
(d) Starts with sand.
The trap
None.
🔒 Clay < 0.002 mm · silt 0.002–0.05 · sand 0.05–2 · gravel > 2 mm.