District Manager | Median Annual Salary: $72,402. Salary outlook: Retail district managers at Walgreen Co. can make an average $128K and Sears Holdings Corporation, CVS Caremark Corporation and Family Dollar Stores Inc. are some of the top-paying firms where district managers see a range of $88K to $114K.
Volcanic eruptions are caused when magma from the magma chamber of the Earth rises up the pipe and out of the vent.Magma is continuously supplied from the mantle of the Earth. Shield volcanoes usually have a gentle eruption, as it contains basic lava.nother type of eruption in what is known as a boiler volcano results from water that gets trapped inside porous rock, and is then heated by the mantle, until is turns into steam and the steam pressure causes the volcano to explode. These explosions can be extremely large.
Impact of volcano eruptions on environment. Volcanoes can have very serious effects on the environment around them when they erupt. Buildings are destroyed and people are made homeless. People are killed. Clouds of ash cover plants making them inedible. Dust causes pneumonia and illnesses to the survivors.