When you travel in certain parts of India, you will notice red soil. What is the main reason for this colour ?

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Q: 121 (IAS/2010)
When you travel in certain parts of India, you will notice red soil. What is the main reason for this colour ?

question_subject: 

Geography

question_exam: 

IAS

stats: 

0,151,20,10,4,151,6

keywords: 

{'red soil': [1, 0, 1, 2], 'colour': [11, 6, 13, 28], 'india': [8, 1, 7, 13], 'phosphates': [0, 0, 2, 0], 'main reason': [2, 1, 6, 3], 'magnesium': [1, 0, 2, 3], 'abundance': [2, 0, 2, 4]}

The red soil found in certain parts of India is mainly due to the presence of ferric-oxides, also known as iron oxide, in the soil. This is caused by the weathering of rocks and minerals that contain iron. As the iron in these rocks and minerals reacts with oxygen and water, it forms iron oxide, which gives the soil its distinctive red color.