Question

With the presence of organic matter and iron oxides in the soil, the colour of soil appears like_?

A Red colour Correct Answer Incorrect Answer
B Brown colour Correct Answer Incorrect Answer
C Dark colour Correct Answer Incorrect Answer
D Yellow, red colour Correct Answer Incorrect Answer

Solution

Iron found within the soil is oxidised more readily due to the higher oxygen content. This causes the soil to develop a 'rusty' colour. The colour can be darker due to organic matter.

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