•Subsoil is an important storehouse of moisture, especially since it's usually much thicker than the topsoil, and the moisture isn't lost as easily by evaporation. The higher clay content of subsoil makes for higher water holding capacity, too.
3. Parent rock
• One of the main pedogenetic factors is represented by parent rock, that significantly contributes in defining the soil type. Soil properties such as thickness, grain distribution (texture), chemical composition, physical-mechanical, and hydrophysical features are directly determined by the parent rock.
4. Bedrock
• Bedrock, a deposit of solid rock that is typically buried beneath soil and other broken or unconsolidated material (regolith). Bedrock is made up of igneous, sedimentary, or metamorphic rock, and it often serves as the parent material (the source of rock and mineral fragments) for regolith and soil
Answers & Comments
Answer:
Four Layers
1. topsoil
2. subsoil
3. parent rock
4. bedrock
Different Characteristics
1. Topsoil
• Dark in colour and soft in texture.
• Rich in humus and hence the most
fertile layer
• Porous, traps air and holds more
water
• Roots of small plants grow in this
layer
• Organisms live in this layer
2. Subsoil
• Subsoil is an important storehouse of moisture, especially since it's usually much thicker than the topsoil, and the moisture isn't lost as easily by evaporation. The higher clay content of subsoil makes for higher water holding capacity, too.
3. Parent rock
• One of the main pedogenetic factors is represented by parent rock, that significantly contributes in defining the soil type. Soil properties such as thickness, grain distribution (texture), chemical composition, physical-mechanical, and hydrophysical features are directly determined by the parent rock.
4. Bedrock
• Bedrock, a deposit of solid rock that is typically buried beneath soil and other broken or unconsolidated material (regolith). Bedrock is made up of igneous, sedimentary, or metamorphic rock, and it often serves as the parent material (the source of rock and mineral fragments) for regolith and soil
Explanation:
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