The theory of plate tectonics has been around for centuries and the evidence to this is groundbreaking. Earth is constantly evolving causing natural events such as earthquakes and volcanoes. The theory of plate tectonics is the idea that the lithosphere of the earth is divided into a small number of plates which float on and travel independently over the mantle, and much of the earth’s seismic activity occurs at the boundaries of these plates. There is a lot of evidence supporting theory, like the shape of continents, the change of polarity, and the age of rocks at mid ocean ridge. The first piece of evidence that supports the theory of plate tectonics, is the shape of continents. Alfred Wegner discovered that the continents that drifted apart had similar traits about them. In particular, he discovered that the continents “fit together like a puzzle” ; each continents fit into each other and form a perfect, united landform. This is only one of the many evidences that the theory of plate tectonics is true. Wegner also invented a great name for this theory, which is Pangea. As an article states,” Pangea is the theory that 335 million years ago, the landform began to break apart.” Another piece of evidence that supports the theory of plate tectonics is the change in polarity. Change of polarity basically makes Earth act like a magnet, “with a north and south pole”. In fact, scientists discovered that the rock on the ocean floor lies in a odd layout magnetized ‘stripes’. Scientists also sensed that Earth’s polarity is not constant, in fact electrons flow through the negative pole into the south pole, and keeps on alternating. This gave the tectonic plates a magnetic memory. Also, the age of rocks at the mid ocean ridge is another piece of evidence that supports the plate tectonics movement theory. As the article states, The experiment called the Glomar Challenger is clear proof that there was sea-floor spreading due to drilling into the ocean floor. This construction of drilling holes into the ocean actually lead to the discovery that the younger rocks were closer to ridge and the older rocks were farther from the mid ocean ridge. This discovery clearly helped the idea of Pangea, and it sparked the divergent boundaries. The theory of plate tectonics is a true yet complicated theory. The shape of continents, the change of polarity, and the age of rocks at mid ocean ridge are great support as to why the theory of plate tectonics is real. So many interesting and complicated events were established in order to confirm that this theory is true. The theory of plate tectonics is surely one that will live on forever!
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