Volcano

Volcano is another natural disaster. When the hot semi-molten mass inside the earth comes out through a crack previously formed or through a weak spot on the earth's surface, it is called volcanic eruption. Such eruption are caused by the force exerted on the semi-molten material.

During a volcanic eruption, sounds of exp lotions are also heard. The molten materials coming out from volcanoes are about 2500 c in temperature. When a volcano erupts, diff types of gases, water vapour, lava and ash like materials come out. Sometimes these materials obstruct the sunlight and make atmosphere dusty around the region for several days.
A volcano destroys both natural ans artificial structures. The ash like materials and gases causes air pollution. The materials that come out from a volcano may be deposited in the form of a mountain called volcanic mountain. It may cover fertile land and make it infertile.
In this way, volcano eruption is one of the most leading problem in the world. That's why all the national and international committee concerned should pay a more attention on these field, so that there may not occur any types of problem. Even we people should be educated on the subject matter.