Eartguakes and volcanoes - Living close to a volcano
25 important questions on Eartguakes and volcanoes - Living close to a volcano
What are some benefits of living near a volcano related to minerals?
- Solidified lava provides useful minerals.
- Valuable minerals: gold, silver, diamond.
- Useful in construction, e.g., volcanic rock.
How does geothermal energy work according to the text?
- Derived from Earth's natural heat.
- Heat used to warm buildings/greenhouses.
- Generates electricity by heating water.
- Steam from heated water spins a turbine.
Why do benefits of volcanoes differ between LEDCs and MEDCs?
- LEDCs: employment in mining is primary.
- Different needs and economic capacities.
- MEDCs: advanced energy usage, technology focus.
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How is volcanic rock used in construction according to the text?
- Building material from solidified lava.
- Used like concrete in many areas.
- Common in areas with active/inactive volcanoes.
How is the water in the Blue Lagoon used before it reaches the spa's pools?
- Used to create geothermal energy.
- Then discharged into the spa's pools.
What is pumice, and where is it used according to the text?
- Type of volcanic rock.
- Used in soap or as a scrubbing tool.
- Mined in places like Iceland.
What are some attractions in Iceland besides the Blue Lagoon?
- Geysers
- Volcanoes
What percentage of Iceland's electricity is generated from geothermal energy?
- Iceland generates 25% of its electricity from geothermal energy.
- This supplies 80% of buildings.
What causes the color of the Blue Lagoon?
- Great amount of minerals in the water.
- Beneficial for skin diseases.
Why is the Ecuadorian government interested in geothermal energy?
- Geothermal energy is environmentally friendly.
- It could be an alternative to expensive fossil fuels.
What are environmental issues associated with mining for gold?
- Use of polluting chemicals like cyanide and mercury.
- Chemicals pollute water, air, and soil.
What is a major tourist attraction in Ecuador?
- Cotopaxi National Park
- Second most visited in Ecuador
- Climbing activity every weekend
- Around 100 climbers attempt it
What is an environmentally friendly method to obtain gold?
- Recycling old jewellery or extracting from old phones.
How has tourism changed around Cotopaxi volcano?
- Increased in recent years
- Nearby towns organize souvenir markets
What minerals do volcanic ash contain, and how do they affect agriculture?
- Volcanic ash contains many minerals.
- Benefits plants by creating fertile soil.
What benefits do volcanoes bring to LEDCs?
- Provide jobs in mining, industry, agriculture.
- Attract tourists.
What crops do farmers grow near the Cotopaxi volcano?
- Farmers grow peaches, pears, apples, plums, and potatoes.
What is a popular tourist spot in Iceland?
- Blue Lagoon
- Geothermal spa
- Heated by earth’s mantle
- Constant water temperature: 37°C to 39°C
How does geothermal energy benefit the environment?
- Creates electricity in an environmentally-friendly way.
How has tourism in Iceland changed from 2002 to 2016?
- Increased quickly over 15 years
- Graph shows rise in tourist numbers
What was the impact of the Cotopaxi volcano eruption in 2015 on agriculture?
- Ash destroyed tree flowers.
- Blocked sunlight from plants, hindering growth.
Why is geothermal technology more common in MEDCs?
- It's environmentally-friendly.
- Typically more advanced in MEDCs.
How do Viking settlers' farming practices differ in Iceland compared to volcanic areas?
- Iceland had fertile soil initially.
- Grew barley, rye, grains.
- Fertility decreased over time.
How much gold is produced from 1,000 kg of cell phones compared to mined gold?
- 1,000 kg cell phones: 300 grams.
- 1,000 kg mined gold: 3 grams.
How do Icelandic greenhouses operate for agriculture today?
- Greenhouses use geothermal power.
- Support the growth of crops in cold climates.
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