Plate tectonics is the theory
that attempts to explain the movement of Earth’s Lithosphere. In 1912, the theory of continental drift by Alfred
Wegener was that the continents were all one big continent called Pangaea and
among time they moved slowly to separate. Things like volcanoes, Earthquakes,
mountains, and trenches are all results of movement along plate boundaries. There
are three types of boundaries, divergent boundary, in which plates move apart
and creates a new crust (magma from mantle), the convergent boundaries are
where plates move toward each other/
sometimes one plate goes under another, and transform boundaries are where
plates slide horizontally and causes friction. Each boundary creates something.
Each type of boundary causes a natural disaster. Convergent boundary creates
mountain, an example is the Himalayan Mountains. Divergent boundary creates
volcanoes, and transform boundary creates earthquakes; if it’s under the ocean
it creates tsunami. I definitely agree with the theory of plate tectonics. As
we know, every scientific theory has evidences.
First evidence is that if you
look at the world map and move the east coast of South America and the West
coast of Africa together, they fit like puzzle pieces.
Second evidence is the Fossil
similarities. Fossils of the same species of plants and animals were found in
different parts of the world, specifically South America, Africa and India.
Third evidence is the sea
floor spreading; the ocean floors are spreading away from mid-oceanic ridges,
indicating that the ocean floor is moving.
I think that all these natural
disasters are result of the mechanisms happening among plates. And all these
are what make our nature a mystery!
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