Final answer:
Seafloor spreading, magnetic striping on the ocean floor, and the existence of land bridges provide evidence for the theory of plate tectonics.
Step-by-step explanation:
The theory of plate tectonics is supported by various lines of evidence. One piece of evidence is seafloor spreading, which occurs at mid-ocean ridges where new crust is created and spreads apart.
Another piece of evidence is magnetic striping on the ocean floor, where alternating bands of normal and reversed magnetic polarity indicate the movement of tectonic plates.
Land bridges like the Hawaiian island chain provide additional support for plate tectonics theory as they are formed by hotspots in the mantle that create volcanic islands.
Learn more about Plate tectonics