The Journey along Ganges River: What about river?

River:
-Natural stream of water
-Flow towards ocean, lake or another stream
-A component of the hydrological cycle
-The water within a river is generally collected from precipitation through surface runoff, groundwater recharge ;release of stored water in natural reservoirs
Classification of river:

-Youthful river- a river with a steep gradient that has very few tributaries and flows quickly. Its channels erode deeper rather than wider. (Examples: Brazos River, Trinity River, Ebro River)
-Mature river- a river with a gradient that is less steep than those of youthful rivers; flows more slowly than youthful rivers. A mature river is fed by many tributaries and has more discharge than a youthful river. Its channels erode wider rather than deeper. (Examples: Mississippi River, St. Lawrence River, Danube River, Ohio River, River Thames)
-Old river-a river with a low gradient and low erosive energy. Old rivers are characterized by flood plains. (Examples: Huang He River, Ganges River, Tigris, Euphrates River, Indus River, Nile River)

Uses of a river:
-source of water
-food
-transport
-defensive barrier
-a source of hydropower to drive machinery
-a mean of disposing of waste.

Flow of river:-

Direction: Rivers flow downhill regardless of direction, often in a complex meandering path involving all directions of the compass.

Rate: Volumetric flow rate, also called volume flow rate and rate of water flow, is the volume of water which passes through a given volume per unit time, measured in cubic meters per second (1 m³/s = 35.51 ft³/s) or cubic feet per second, sometimes gallons per second.

Stages of rivers
There are also three stages to a river's life.

1. Stage 1 is a youthful river. This is the river in its upper course where it is fast flowing and is a stream.

2. Stage 2 is the mature river. This is the river in its middle course where it has meanders and is flowing more slowly. Other rivers join as tributaries in its mature stage.