| Which of the following statements regarding laterite soils of India are correct? |
| 1. Laterites are generally red in colour |
| 2. Laterites are rich in nitrogen and potash |
| 3. These are well-developed in Rajasthan and U.P. |
| 4. Tapioca and cashewnuts grow well on this soil |
| Select the correct answer using the codes given below: |
A) 1, 2 and 3
B) 2, 3 and 4
C) 1, and 4
D) 2 and 3
Correct Answer: C
Solution :
[c] Laterite soil is rich in aluminium and iron, formed in wet and hot tropical areas. Almost all laterite soils are red due to the presence of iron oxides. It is prepared by the prolonged and rigorous weathering of the parent rock. Laterisation or tropical weathering is a long-drawn-out process of chemical and mechanical weathering which results in a large variety in the chemistry, grade, thickness and ore mineralogy of the ensuing soils. Laterite soils are high in aluminium and iron oxides, but are deficient in potash, phosphoric acid, lime and nitrogen. Laterite soil in India is mainly found capping the flat uplands, and is also spread in the western coastal region, getting incredibly heavy rain. Lateritic soils are also abundant in area along the edge of the plateau in the east, covering small parts of the states of Tamil Nadu and Orissa and a small portion of the Chota Nagpur Plateau in the north and Meghalaya in north-east. Laterite soils are habitually poor and can hold only scrub forests and pastures. Among the mixed types of soils, two groups are more substantial. They include the desert soils of western Rajasthan and mountain soils of the Himalayas
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