Question

Soil is classified into different horizons. Give an account of different layers of soil.

Answer 1

Instructions:

• Mention the different layers of soil
• Explain each layer briefly

Answer:

• Soil is arranged in distinct layers; each layer differs from the other based on its physical characteristics, colour, and texture.
• Total arrangement of these layers is called a soil profile.
• Each layer is called a horizon.

The soil profile is as follows:

• Topsoil: Consists of organic matter and decomposed animal remains. Rich in nutrients and good for crops.
• Organic Layer: Also known as the humus layer, the layer where plants grow.
• Subsoil: Contains clay and has rich deposits of minerals.
• Regolith: Consists of broken-up particles of the parent rock.
• Parent Rock: Unweathered rock that decides the soil type.