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:
For geothermal energy
-Pros: No cost fluctuations determined by gas and oil prices.
-Cons: Fewer installers than standard HVAC and thus less competition.
For hydroelectric
-Pros: Facilities can affect land use, homes, and natural habitats in the dam area
-Cons: Hydropower does have environmental impacts.