Final answer:
According to the theory of plate tectonics, volcanoes and earthquakes will occur at the intersections of crustal plates.
Step-by-step explanation:
According to the theory of plate tectonics, volcanoes and earthquakes will occur at the intersections of crustal plates. These intersections, known as plate boundaries, are where the movement and interaction of tectonic plates result in intense geological activity. There are three main types of plate boundaries: convergent boundaries, divergent boundaries, and transform boundaries. Each type of boundary has its own characteristics and is associated with specific geological phenomena such as volcanic eruptions and seismic activity.
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