Which of the following pairs is not correctly matched?

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Alluvial soil - ideal for sugarcane and paddy

Black soil - cotton

Laterite soil - cashew nut

None of the above

answer is D.

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Detailed Solution

The correct option is 4th, as none of the above is the correct option. The reason behind this can be understood as:
Alluvial soil: It is ideal for sugarcane as this soil is well irrigated and rich in organic matter which is required for growing Sugarcane. Black Soil: Cotton requires high moisture to grow and black soil majorly consists of clay which has high water retention capacity, thus making it suitable for the growth of cotton.
Laterite soil: It is rich in iron oxides and also due to the presence of clay it also has good water retention capacity and thus making this soil ideal for the growth of cashew nuts.

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