Which of the following factors in the construction of the soil plays the main role?

Key Points

• Weathering is the main factor in the construction of soil.
• It involves the breaking down of rocks and minerals into smaller particles through physical, chemical, and biological processes.
• Weathering is essential for soil formation as it provides the mineral content necessary for plant growth.
• Other factors like erosion, pollution, and radiation can affect soil, but they are not primary contributors to its formation.

Additional Information

• Weathering can be categorized into three types: physical, chemical, and biological weathering.
• Physical weathering involves the breakdown of rocks without any chemical change, such as freeze-thaw cycles and thermal expansion.
• Chemical weathering involves the chemical alteration of minerals, such as oxidation and hydrolysis.
• Biological weathering involves the contribution of living organisms, such as plant roots and microbial activity, in breaking down rock material.
• Soil formation is a slow and continuous process that can take hundreds to thousands of years, depending on environmental conditions.