Volcanoes Risks and Benefits
I. Introduction …………………………… 1 II. Body …………………………… 2 a. Definition …………………………… 2 b. Kinds of volcano …………………………… 2 c. Types of eruption …………………………… 3 d. Risk …………………………… 4 e. Benefits …………………………… 11 a. Tourism …………………………… 11 b. Environment …………………………… 13 III. Conclusion …………………………… 15 IV. Bibliography …………………………… 17
Introduction
The term volcano can either mean the vent from which magma erupts to the surface, or it can refer to the landform created by the solidified lava and fragmental volcanic debris that accumulate near the vent. One could say, for example, that large lava flows are erupted from Kilauea volcano in Hawaii, the world volcano here signifies a vent. Volcanoes are not the realm of any single scientific discipline. Rather they require study from many scientists from several specialties: Geophysicist and Geochemist to probe the deep roots of volcano; Geologist to decipher prehistoric volcanic activity; Biologist to learn how life became established and evolve in barren volcanic islands; and meteorologist to determine the effects of volcanic dust and gases on the atmosphere, weather and climate. Volcanoes affect humankind in many ways. Their destructiveness is awesome, but risk involved can be reduced by assessing volcanic hazards and forecasting volcanic eruptions.
Body
Volcanoes Risks and benefits
Definition
First of all, we should know what a volcano is.
Volcano is an opening in the earth’s surface. Through this opening has come rock so hot that it is in a liquid or gaseous state. This melted rock deep in the earth is called magma. Philosophers once thought that volcanic eruptions came from the burning of natural fuels. Sir Charles Lyell and his associates later showed the volcanic mountains were piled up from the products of their own eruptions
For hundreds of years, volcanoes have struck terror and wonder into the heart of man. In ancient time, they even
Introduction
The term volcano can either mean the vent from which magma erupts to the surface, or it can refer to the landform created by the solidified lava and fragmental volcanic debris that accumulate near the vent. One could say, for example, that large lava flows are erupted from Kilauea volcano in Hawaii, the world volcano here signifies a vent. Volcanoes are not the realm of any single scientific discipline. Rather they require study from many scientists from several specialties: Geophysicist and Geochemist to probe the deep roots of volcano; Geologist to decipher prehistoric volcanic activity; Biologist to learn how life became established and evolve in barren volcanic islands; and meteorologist to determine the effects of volcanic dust and gases on the atmosphere, weather and climate. Volcanoes affect humankind in many ways. Their destructiveness is awesome, but risk involved can be reduced by assessing volcanic hazards and forecasting volcanic eruptions.
Body
Volcanoes Risks and benefits
Definition
First of all, we should know what a volcano is.
Volcano is an opening in the earth’s surface. Through this opening has come rock so hot that it is in a liquid or gaseous state. This melted rock deep in the earth is called magma. Philosophers once thought that volcanic eruptions came from the burning of natural fuels. Sir Charles Lyell and his associates later showed the volcanic mountains were piled up from the products of their own eruptions
For hundreds of years, volcanoes have struck terror and wonder into the heart of man. In ancient time, they even