Its called the Photosphere, which is the part that we can see.
Tilting - Processes such as tilting, folding, faulting, and intrusions of igneousrocks can distort the original strata. Tilted geologic layers were originally horizontal. Sediments will fill in uneven geologic layers. Geologists observe the tilted layer and try to visually reposition it horizontally.
It is hydropower the first option