With reference to Laterite soils consider the following statements 1 They develop in areas havi...........

Geography World - Soil and Vegetation

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With reference to Laterite soils, consider the following statements:

1. They develop in areas having high temperature and high rainfall.

2. They are rich in nitrogen and phosphate.

3. They are widely used in house construction.

Which of the statements given above is/are correct?

1 and 2 only

1 and 3 only

2 and 3 only

1,2 and 3

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Explanation:

Statement 1 is correct: The laterite soils develop in areas with high temperature and high rainfall. These are the result of intense leaching due to tropical rains. With rain, lime and silica are leached away and soils are rich in iron oxide and aluminum compound called sesqui oxides.

Statement 3 is correct: Laterite has been derived from the Latin word ‘Later’ which means brick. Laterite soils are widely cut as bricks for use in house construction

Statement 2 is not correct: These soils are poor in organic matter, nitrogen, phosphate and calcium, while iron oxide and potash are in excess. Hence, laterites are not suitable for cultivation. However, application of manures and fertilizers are required for making the soils fertile for cultivation.