Step 1: Overview of Laterite Soil.
Laterite soil is rich in iron and aluminum, and when subjected to heavy rainfall, it tends to become infertile. The high iron content in laterite soil makes it less suitable for agriculture in the long term.
Step 2: Analysis of options.
- (A) Alluvial soil: Alluvial soil is fertile and is formed by the deposition of silt in river beds, making it rich for cultivation.
- (B) Black soil: Black soil is fertile and ideal for cotton cultivation, not infertile due to high iron content.
- (C) Laterite soil: Laterite soil is the correct answer, as it becomes infertile due to the high concentration of iron.
- (D) Desert soil: Desert soil lacks fertility due to dryness, not high iron content.
Step 3: Conclusion.
Laterite soil is the soil that becomes infertile due to a high amount of iron, so the correct answer is (C) Laterite soil.