INDIAN GEOGRAPHY

Detailed explanation-1: -In the Upper Ganga Segment (UGS) from Gaumukh to Rishikesh, the river flows mostly on steep bed with an average approximate slope 1 in 70. The river has turbulent flow and high velocities in most part of this segment.

Detailed explanation-2: -Hence, the average velocity of the water in the river Ganga is 23 km/hr.

Detailed explanation-3: -The Ganges River originates in the Himalaya Mountains at Gomukh, the terminus of the Gongotri Glacier. When the ice of this glacier melts, it forms the clear waters of the Bhagirathi River. As the Bhagirathi River flows down the Himalayas, it joins the Alaknanda River, officially forming the Ganges River.

Detailed explanation-4: -The Ganga river divides itself into several channels in the delta area. The slope of the land here is a mere 2 cm per km. Two thirds of the area is below 30 m above mean sea level.