Volcanoes

Part I of Essay
The objective of this project is that I am going to explain about , the different types of and tell some other interesting facts on this subject. Here is some background information about . are vents in the Earth where molten rock (magma) and gases erupt. Molten rock ins ....

Part II of Essay
.... made of cinders and is loosely arranged. A Shield Volcano is round and covers a large area. It was named this, because these looked like the shields of the Germanic warriors. The Composite are strong steep-sided cones. Some the tallest are Composite . produce many chemicals and natural resources. make zinc, copper, lead, mercury and many of the World's sulfur deposits. are very useful. The rocks are used in different types of construction, crushing them for roads, geothermal energy and as decorative stone. In the United States ther ....