Volcanic eruption may cause catastrophe for people, as it usually kills everything and everybody within the reach of its magma. Lava stream is very hot and has a lot of degrees in temperature, in such way it destroys everything. But thanks to it, some objects have conserved well from ancient times. Lava congeals and in such way forms some kind of protective layer that keeps the original look and form of objects. Thanks to volcanic eruption, new lands and islands may appear. But at the same time volcanic eruption may kill the whole city. Famous city Pompeii was destroyed because of eruption of the volcano Vesuvius.
