Risks and benefits of living near volcanoes Flashcards
The 4 benefits of living near a volcano are …
- Fertile soil
- Precious stones and minerals
- Tourism
- Geothermal energy
Fertile soil is a benefit because …
The soil is rich in minerals that promote the growth of crops, which benefits agricultural farmers.
It supports the agricultural activities around the volcano.
An example of a place with rich and fertile soil is …
Bali or Java - supports the growing of coffee and tea.
Precious gem stones and minerals is a benefit because …
These gem stones and minerals are used for:
- Jewelry that can be sold to make money.
- Volcanic rocks can be used as building materials. E.g. Sulphur is collected to make fertilizers and matches in Indonesia
- Research purposes
Volcano is also a popular tourist spot because …
People visit volcano to hike and enjoy the scenery. E.g. Pompeii, in Italy
The locals also benefit from tourism at volcanic areas because …
They can become local tour guide and hence, helps them to earn additional income.
Geothermal energy comes from …
The heat in the earth’s crust.
Groundwater gets heated up and steam is produced.
The steam then drives turbines to generate electricity.
A country that generates geothermal energy is …
Iceland - generates more than 70% of its energy from geothermal energy.
The 2 risks of living near a volcano are …
- Pollution
2. Destruction by volcanic materials
How does volcanic eruption cause pollution?
Volcanic eruption gives out large amounts of ashes and volcanic materials.
List 3 impacts of air pollution due to volcanic eruption.
- Ashes block out sunlight and suffocate crops.
- Causes respiratory problems for people and animals when they breathe in the particles.
- Flights were cancelled as the volcanic clouds made it difficult for airplanes to fly.
Examples of volcanic materials are …
- Lava flow
- Volcanic bombs
- Landslides
- Pyroclastic flow and lahars
List three things that the volcanic materials can damage / destroy.
- Damage to infrastructure [roads, railways]
- Damage to properties [homes, agricultural lands]
- Loss of lives