Select the most appropriate sentence with respect to grammar and usage.
1
Infiltration is the process by which water enters the soil.
2
Evaporation was an important part of the water cycle.
3
The upper phase of the river Ganges begun at the confluence of the Bhagirathi and Alkananda rivers.
4
First European traveller to mention the Ganges was the Greek envoy Megasthenes.
5
None of these