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risks and benefits of living near volcano

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by

Lim YueQi

on 10 July 2016

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Transcript of risks and benefits of living near volcano

Risks and Benefits of living near volcano
Risks of living near volcano

Destruction by volcanic materials
Landslides
Polllutions
effects on weater
Destruction by volcanic materials
Materials include lava[high temp] , rock fragments and volcanic boobs
lava can burn the areas it flow through
low silica lava moves rapidly and flows longer distance [cause damage to larger area]
The pyroclastic flow can destroy everything in its path with rock fragments ranging from ashto boulder
inhaling hot ash and gases can lead to death or serious injury
causes damage to property (example:houses,farms and crops)
resulting in people being homeless and jobless
landslides
landslides occur due to the structural collapse of a volcanic cone during an eruption
can obstruct the flows of rivers causing floods
blocked roads
buried villages and farmland
pollution
thick plumes of volcanic ash can block sunlight
suffocate crops when settled on the ground
cause respiratory problem for people and animal
volcanic eruption releases gases that are harmful to people[example :carbon monoxide,sulphur dioxide
effect on weather
Sulpher dioxide released from an eruption may react with water vapour and other chemicals in the air to form sulpher based particles
particles reflect the sun's energy into space temporarily cooling the earth for a period of time ranging a few months to years
benefits of living near volcano
fertile volcanic soil
precious stones and minerals, building materials
tourism
geothermal energy
fertile volcanic soil
lava and ash fro volcanic eruption break down to form fertile soil
as the richest soil on earth , it is favorable for agriculture
minerals in volcanic rocks will only be available to plants after rocks hav broken down over thousands of years
precious stones and minerals, building materials
Volcanic rocks can be rich in precious stones and minerals. These resources can only be extracted from volcanic areas after millions of years. When the upper layers of volcanic rocks are eroded, the precious stones and minerals can be extracted.
Volcanic rocks are also good resources for building materials and the production of other daily items. For example, in Indonesia, workers collect sulphur from active volcanoes. The sulphur that is collected is subsequently used to make matches and fertilisers.
Tourism
Tourism Volcanic areas offer a variety of activities for tourists to engage in. Many people visit volcanoes to hike and camp in the area or simply to enjoy the scenery, Volcanic areas are rich in history and people.
Geothermal energy is derived from the heat in the earth's crust. When groundwater comes into contact with hot rocks beneath the surface, it heats up and erupts as hot water or steam. The hot water or steam can be harnessed to drive turbines and produce electricity.

Geothermal energy
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