Which one of the following factors is not suitable for soil formation in nature?Select an answerASunBH2OCAirDNylon

To determine which factor is not suitable for soil formation in nature, we need to analyze the given options:

1. A. Sun - Sunlight is crucial for biological processes, including plant growth, which contributes to soil formation through organic matter accumulation.

2. B. H2O (Water) - Water is an essential component of soil and is vital for weathering processes that break down rocks into soil.

3. C. Air - Air provides necessary gases (like oxygen and carbon dioxide) that are crucial for the respiration of soil organisms and for chemical weathering.

4. D. Nylon - Nylon is a synthetic material and does not contribute to natural soil formation processes.

Final Answer

The factor that is not suitable for soil formation in nature is D. Nylon.