Which of the following statements regarding laterite soils of India are correct?
1. They are generally red in colour.
2. They are rich in nitrogen and potash.
3. They are well-developed in Rajasthan and UP.
4. Tapioca and cashew nuts grow well on these soils.
Select the correct answer using the codes given below.
Statement 1 is correct: Nearly all laterites are of rusty-red colouration, because of high iron oxide content. Statement 2 is incorrect: Laterite is rich in iron and aluminium but poor in nitrogen, potash, potassium, lime, and organic matter. It is commonly considered to have formed in hot and wet tropical areas. Statement 3 is incorrect: Laterite soil is commonly found in areas of high altitude and heavy rainfall in Karnataka, TN, MP, Bihar, Orissa, Assam, and Meghalaya. Statement 4 is correct: Plants like Cashew grow well along with Tapioca in this type of soil.