The Earth rumbles and a hiss of steam issues from the top of Mt Ruapehu. Are these two events related? Is the earthquake caused by the volcano? Or is the steam caused by the earthquake?
Tectonic plates
When Alfred Wegener first proposed the idea of continental drift (the precursor idea to plate tectonic theory), it didn’t quite explain the full story. While he correctly showed that Africa and South America fitted together, his model wasn’t able to explain the violent forces that occur around the Earth’scrust.
<span>As water in the oceans cools down, it tends to Sink
b)Sink
Because when water becomes warm due to the heat of the sun it floats to the surface of the ocean and cool water is in the bottom</span>
Raw material Used to make steel
In March 28, 1964 at Alaska with a 9.2 magnitude
