Either an groundwater source, like a well, or from a surface-water source, such as a river, lake, or reservoir.
Answer:
1.plateau in the mountains
2. extensive mountain ranges
3.long ridges
4.inca Road system
5.fan-shapred deposit
That was the 'movement' called Khmer rouge. The leader associated with it was pol pot.
Carbon dating, relative dating,absolute dating i hope this helps=)