Which one of the following is the largest component of the soil system ?
Living organisms
Mineral matters
Soil solution
Soil organic matter
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Answer is Wrong!
This question was previously asked in
UPSC CISF-AC-EXE – 2018
In a typical mineral soil composition by volume, mineral particles (sand, silt, clay) constitute the largest proportion, usually around 45-50%. Soil solution (water) and soil air each occupy roughly 20-30% of the volume, depending on moisture content. Soil organic matter makes up a much smaller percentage, typically around 5% or less in mineral soils, while living organisms are present in very small quantities compared to the total volume.