Which of the following soil has color mainly due to the diffusion of Iron oxide rather than presence...........

Agriculture and Rural Development (Phase-I/II) Soil and Water Conservation

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Which of the following soil has color mainly due to the diffusion of Iron oxide rather than presence of Manganese?

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Nabard grade-A,Previous year Memory Based Paper 18 Sept,2021

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Regur Soil

Laterite Soil

Alluvial Soil

Yellow Soil

Peaty Soil

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Explanation:

- Regur Soil (Option 1): Also known as black cotton soil, this soil is rich in lime, iron, magnesia, and alumina, but its color comes primarily from volcanic rocks.

- Laterite Soil (Option 2): These soils are rich in iron and aluminum and get their red color mainly from the diffusion of iron oxide. These are found in tropical regions with high rainfall.

- Alluvial Soil (Option 3): It is usually light in color and does not have its color due to iron oxide. It is fertile and found in river basins.

- Yellow Soil (Option 4): Its color may be due to the presence of iron that has oxidized but not intensely, making it yellowish.

- Peaty Soil (Option 5): It's rich in organic matter and usually dark, not due to iron oxide.