Assertion A Black soils are suitable for cotton cultivation Reason R They are rich in aluminia iron ...........

Geography World - Soil and Vegetation

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Assertion (A): Black soils are suitable for cotton cultivation.

Reason (R): They are rich in aluminia, iron, lime and magnesium.

Both (A) and (R) are true and (R) is the correct explanation of (A). +

Both (A) and (R) are true but (R) is not the correct explanation of (A)..

(A) is true but (R) is false.

(A) is false but (R) is true.

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Explanation:

Black soils are also called as regur soils. Central India and Deccan plateau mainly constitutes this type of soil. This type of soil is typically of the Deccan trap region spread over Northwest Deccan plateau and is made from lava flows. They cover the plateaus of Maharashtra, Saurashtra, Malwa, Madhya Pradesh, Chhattisgarh and extend in South-East direction along Godavari and Krishna valleys. These soils contain essential clay minerals as montmorillonite. They are rich in aluminia, iron, lime and magnesium.