INDIAN GEOGRAPHY

Detailed explanation-1: -Alluvial soil is not found in western coastal plain.

Detailed explanation-2: -5) Alluvial soil is found in Mumbai Suburban District, Mumbai city district some parts of Thane & Palghar district.

Detailed explanation-3: -The correct answer is Regur soil. Regur soil is also known as Black soil. The presence of titaniferous magnetite gives black color to this soil. It is basically formed from the erosion of basaltic rock.

Detailed explanation-4: -Most alluvial soils are derived from the sediment being deposited by the river Ganga in the Indo–Gangetic plain, ranging from Punjab in the west to West Bengal and Assam in the east, as well as in the coastal areas of northern parts of Gujarat, Narmada, and Tapi valleys, which are formed by sea waves.

Detailed explanation-5: -Alluvial soil is found in the regions of Indo-Gangetic plains, Punjab, Haryana, Uttar Pradesh, Bihar, West Bengal, Assam as well as in the northern parts of Gujarat. Alluvial soil is formed by depositions from surface water and thus is also known as depositional soils.