GK
INDIAN GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Red soil colour is caused by:
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Aluminium compounds
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Mercury compounds
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Iron compounds
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Clay
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Explanation:
Detailed explanation-1: -This colour indicates good drainage. 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.
Detailed explanation-2: -Red soil contains a high percentage of iron content, which is responsible for its colour. Even though the soil has a high amount of Iron oxide, it has very low levels of nitrogen and other elements and its pH ranges from neutral to acidic.
Detailed explanation-3: -Halloysite, Goethite and hematite are the most common iron oxide mineral. These three types of minerals were found in red soils.
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