Introduction: The Earth crust is dynamic. The earth surface is being continuously subjected to external forces (exogenic ) induced basically by energy (sunlight) and internal forces (endogenic) are active though with different intensities Some changes are fast and some are slow. Earthquakes and volcanoes are endogenic forces which cause sudden changes on the earth. Weathering and agents of sculpture are exogenic forces which bring about slow changes. Exogenic as well as endogenic processes are constantly shaping the landscape. Volcanic eruption and volcanic features are an important source of obtaining direct information of earth. Volcano The molten material coming out from inside the earth through a pipe or vent and accumulating around the pipe in the form of a mound is called a volcano. All volcanoes result from magma, molten material below the earth’s surface, which is brought to the surface as lava or volcanic fragments. Volcanoes show considerable variation in size, shape and the...