Answer:
The 4,345 mile long Amazon River was considered to be the 2nd longest river in the world until recently, when some Peruvian and Brazilian studies confirmed that it is longer than the Nile. The most distant source of the Amazon is the Mantaro River in Peru. The Mantaro joins with other tributaries to form river Ucayali which meets with river Maranon to create the primary stem of the Amazon. The River Ene forms at the confluence of the River Apurimac and the River Mantaro,
Step-by-step explanation: