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Discuss how soil development is influenced by any three of the following factors: - Mineral matter - Air - Water - Organic matter. - Leaving Cert Geography - Question 18 - 2013
Question 18
Discuss how soil development is influenced by any three of the following factors: - Mineral matter - Air - Water - Organic matter.
Worked Solution & Example Answer:Discuss how soil development is influenced by any three of the following factors: - Mineral matter - Air - Water - Organic matter. - Leaving Cert Geography - Question 18 - 2013
Step 1
Mineral matter
Answer
Mineral matter is crucial in soil development as it provides the essential nutrients required for plant growth. It includes minerals like sand, silt, and clay, which contribute to soil structure and fertility. For instance, clay particles enhance nutrient retention due to their large surface area, helping in moisture retention as well. The interaction between these minerals and soil organisms promotes a healthy soil ecosystem.
Step 2
Air
Answer
Air plays a significant role in soil development by influencing the processes of respiration and decomposition within the soil. The presence of oxygen in the soil is vital for the survival of microorganisms, which break down organic matter and contribute to nutrient cycling. Furthermore, good aeration prevents soil compaction, facilitating root growth and water infiltration.
Step 3
Water
Answer
Water is a key component in soil development, acting as a medium for nutrient transport and chemical reactions. It aids in weathering processes, breaking down rocks and minerals through hydrolysis and other means. Additionally, sufficient moisture supports various biological processes, including the activity of soil microbes and plant roots, thus enhancing soil fertility and structure.