INDIAN GEOGRAPHY

Detailed explanation-1: -In the Brahmaputra valley and adjoining hills, rainfall is less than 200 cm. 3. Southern parts of Gujarat, east Tamil Nadu, northern peninsula, northern Ganga plain and Manipur get rainfall between 100-200 cm.

Detailed explanation-2: -Regions of high rainfall: The following areas receive rainfall above 200 cm. Highest rainfall occurs in west coast and sub Himalayan ranges, Meghalaya Hills, Assam, West Bengal, West Coast and Southern slopes of eastern Himalayas.

Detailed explanation-3: -The meteorological conditions in catchments of Brahmaputra in Tibet and in India are different and lie in different climatic zones. The mean annual rainfall over the entire catchments including Tibet and Bhutan is about 2500 mm.

Detailed explanation-4: -Regions of moderate rainfall include areas with 100-200 cm of rainfall. Gujarat, East Tamil Nadu, North-eastern Peninsular, Western Ghats, eastern Maharashtra, Madhya Pradesh, Odisha, the middle Ganga valley are included in this range.

Detailed explanation-5: -Assam which is located in the North-eastern side of India has the following characteristics mentioned in the question like rainfall of 200-400 cms, presence of fertile alluvial soil brought by rivers like Brahmaputra with rice as predominant crop.