The answer is kinda obvious, sunlight, soil, and water
A batholith has an irregular shape with side walls that incline steeply against the host rock. Most batholiths intrude across mountain folds and are elongated along the dominant axis of the range; faulting and contact metamorphism of the enveloping rock near the batholith is also observed.
The cause would have to be that there are so many changing trends in a countries economy.
Human
Thank you hope this helps