It all happens suddenly
Some happens gradually, and some happens suddenly
Slow geologic processes and catastrophic events
Slow geologic processes and catastrophic events
pleistocene
I think you are going for plate tectonics.
pliocene
Africa
Yes. Plate tectonics is part of the current principal theory that seems to explain the formation of geologic faults, rifts, earthquakes, sea floor spreading, and even some diversification of species, among other phenomena.
Many scientists believe that modern humans first appeared in Africa, specifically in the region of the Great Rift Valley. This is supported by fossil and genetic evidence that suggests an African origin for our species.
Scientists believe early modern humans originated in Africa. This theory is supported by fossil and genetic evidence that suggests humans evolved in Africa before migrating to other continents.
Moseley and Bohr
Cenozoic