What tectonic process is ongoing between Baja California and the Mexico?

The correct answer is: Spreading.

Baja California is a peninsula located in the Pacific Ocean, off the west coast of Mexico. It is separated from the mainland by the Gulf of California, which is a narrow sea. The Gulf of California is a spreading center, where the North American Plate and the Pacific Plate are moving apart. As the plates move apart, new oceanic crust is formed in the center of the gulf. This process is called spreading.

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