Question

why does soil does not remain the same colour brown ? and why it has different colours?​

Answer 1

Answer:

Soil color is influenced by its mineral composition as well as water and organic contents. For example, soils high in calcium tend to be white, those high in iron reddish, and those high in humus dark brown to black. Soil needs only about 5% organic material to appear black when wet.

Explanation:

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Answer 2

Answer:

Soil color is produced by the minerals present and by the organic matter content.

Yellow or red soil indicates the presence of oxidized ferric iron oxides.

Dark brown or black color in soil indicates that the soil has a high organic matter content.

Organic matter tends to make the soil color darker