Answer:
An outcrop consisting of several horizontal sedimentary rock layers represent a vertical time-series of geologic events. The textures of each sedimentary layer tells us the environment that was present at that location when the layer formed.
Explanation:
1) gravity, which drives the flow downslope
2) drag at the base of the flow
3) resistance caused by viscosity of the flow,
both of which tend to slow the progress of the flow.
It was seen as prosperous and new. The The US was selling cheap land out there and people took that opportunity. Also the gold rush was occurring.