Final answer:
The fit of the continents, the strength of earthquakes, and the speed at which Earth rotates are sources of evidence for the plate tectonics theory.
Step-by-step explanation:
One of the sources of evidence for the plate tectonics theory is the fit of the continents. The shapes of the continents seem to fit together like pieces of a jigsaw puzzle, supporting the idea that they were once joined together.
Another source of evidence is the strength of earthquakes. Earthquakes tend to occur along plate boundaries, which suggests that the movements of tectonic plates are responsible for seismic activity.
Additionally, the speed at which Earth rotates is also linked to plate tectonics. The rotation of the Earth affects the movement of tectonic plates and contributes to plate boundaries and other geological phenomena.
Learn more about plate tectonics