Consider the following statements about the soils of India :

I. High temparature during most of the year retards formation of humus
II. Soils which have humus require regular application of chemical fertilizers to remove nitrogen deficiency
III. Titanium salts in basalt impart black colour to the soils of Indian plateau
IV. Red solis are confined to the peripheral areas of the Indian plateau
A I and II
B I, III and IV
C II and III
D II and IV
Answer & Explanation
Option: [B]

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