Question

Why is black soil Grey in colour?

Answer 1

Answer:

Black soil is a dye to high Content of organic matter or rich with iron and magnesium minerals and metals.

It makes the color of soil grey or sometimes black also.

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.