Final answer:
Sources of evidence for plate tectonics include fossils indicating past ocean coverage of dry lands, distribution of species suggesting continental connections, and geological events and formations consistent with tectonic movements.
Step-by-step explanation:
the question about the source of evidence for the plate tectonic theory is the presence of fossils, the geographic distribution of ancient climate zones, and the distribution of rock types. These elements provide clear insight into the past movements of Earth's tectonic plates.
In-depth, the explanation of this evidence includes various aspects. Fossils of ancient sea life found on dry land far from current oceans suggest that these areas were once submerged under water, indicating continental movement over time. Furthermore, the discovery of similar species on different, widely separated continents supports the idea that these lands were once connected. Mountain building, another key piece of evidence, reveals the process of continental drift where two land masses converge, forming mountain ranges. Additionally, the occurrence of earthquakes and volcanic eruptions reflects the dynamic nature of tectonic boundaries. Lastly, the pattern of geological formations, such as the unique flora and fauna distribution, aligns with historical continental separations like Laurasia and Gondwana, providing more clues to the plate tectonics puzzle.