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Which of the following type of soil has the smallest particle size?
  • a)
    Sand
  • b)
    Silt
  • c)
    Clay
  • d)
    Fine sand 
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following type of soil has the smallest particle size?a)S...
The correct answer is Clay.
Key Points
  • The particles that makeup soil are categorized into three groups by size – sand, silt, and clay.
    • Single clay particles cannot be seen with a naked eye.
    • Size is less than 0.002 mm in diameter.
    • ​​Sand particles are the largest and clay particles the smallest. 
Additional Information
  • The particles in clay are tightly packed together with each other with very little or no airspace.
  • This clay has very good water storage qualities and makes it hard for moisture and air to penetrate into it.
    • It is very sticky to the touch when wet, but smooth when dried.
    • It is the densest and heaviest type of soil that does not drain well or provide space for plant roots to flourish.
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Most Upvoted Answer
Which of the following type of soil has the smallest particle size?a)S...
Clay
Clay has the smallest particle size among sand, silt, and clay.

Particle Size
- Sand: 0.05-2.0 mm
- Silt: 0.002-0.05 mm
- Clay: <0.002>

Explanation
Clay particles are the smallest of the three types of soil particles, measuring less than 0.002 mm in diameter. Due to their incredibly small size, clay particles have a large surface area relative to their volume. This property gives clay soil its unique characteristics, such as high water retention and nutrient-holding capacity. Clay soils can be challenging to work with due to their tendency to become compacted and waterlogged. However, with proper management techniques, clay soils can be improved to support healthy plant growth.
In contrast, sand particles are larger (0.05-2.0 mm) and have low water and nutrient retention capabilities. Silt particles fall in between sand and clay in terms of size (0.002-0.05 mm) and offer better water and nutrient retention compared to sand but less than clay.
Overall, the particle size of soil plays a crucial role in determining its physical properties, water-holding capacity, and fertility. Understanding the characteristics of different soil types can help in selecting the appropriate amendments and management practices for optimal plant growth.
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Which of the following type of soil has the smallest particle size?a)Sandb)Siltc)Clayd)Fine sand Correct answer is option 'C'. Can you explain this answer?
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