What is the average percentage of minerals in soil composition?

Correct option is C

The correct answer is (c) 3.45
Explanation:
• Soil is composed of four main components: minerals, organic matter, water, and air.
• On average, minerals constitute approximately 3.45% of the soil by weight.
• These minerals are essential for plant growth as they supply important nutrients.
• They include particles of sand, silt, and clay derived from weathered rocks.
• The exact percentage may vary slightly depending on the soil type and region.
Information Booster:
• The mineral portion provides structure and affects soil texture.
• Clay minerals especially influence water retention and cation exchange capacity.