“Volcanic and seismic events are major pieces of evidence towards proving the plate tectonics theory is valid” Discuss the extent you agree with this statement.

Plate tectonics is the theory used to explain the structures of the earth’s crust. Direct and indirect evidence can show us what is beneath our feet, or the composition of the crust. Volcanoes and earthquakes are both natural hazards, however are two of the most precise pieces of evidence to explain what is really happening up to 6371 kilometres away.
In 1915, Alfred Wegener set out evidence for Continental drift using studies of continents fitting and glacial deposits samples. He discovered a large scale horizontal movement of continents in geological time. Rock types was one piece of evidence when discovering continental drift. The age, discovered by radiometric dating of rocks and distinct characters were both seen on two separate pieces of land. Other evidence such as Fossils from a fresh water Dinosaur, known as the Mesosauraus, is found on South America and Africa, there is no way this dinosaur could have swam across the Atlantic to populate on both lands. Although there was plenty of evidence for Continental drift, there was no reason of why the continents would be driven apart and together. This was until 50 years later, when geologist Harry Hess proposed his hypothesis on Seafloor spreading. He predicted that basaltic magma from the mantle rises to create new ocean floor at the Mid-Ocean Ridges. Seafloor spreading shows the mechanism of Wegener’s theory of Continental Drift. Evidence for the Seafloor spreading includes investigating Mid Ocean Ridges. Rocks forming at the MOR are younger and less dense at the MOR compared to much more dense older rocks by seafloor trenches, or convergent plate boundaries. We can see that plates sub duct and extreme heat will turn rock into magma, where it will