Geothermal Energy Concepts and Challenges

The video explores geothermal energy, focusing on Iceland's use of this renewable resource. It explains how geothermal energy is generated from Earth's mantle and utilized in power plants and heat pumps. Despite its potential, geothermal energy accounts for only 0.2% of global energy due to challenges like cost and location. However, new technologies are emerging to address these issues, offering hope for sustainable energy solutions.

What is the primary source of geothermal heat beneath Iceland?

• Volcanic eruptions

• Earth's core

• Radioactive decay of metals

• Solar radiation

How do geothermal power plants generate electricity?

• By using solar panels

• By burning fossil fuels

• By using steam to turn turbines

• By harnessing wind energy

What is a key advantage of geothermal heat pumps over fossil fuel systems?

• They are more energy efficient

• They require more external electricity

• They are more expensive to operate

• They are less efficient

How do geothermal heat pumps utilize the Earth's heat?

• By drilling deep wells

• By capturing wind energy

• By circulating liquids through shallow earth

• By using surface solar panels

Why is geothermal energy not more widely used despite its potential?

• Lack of public awareness

• High cost and location constraints

• Insufficient government support

• Limited technological advancements

What environmental concern is associated with geothermal drilling?

• Air pollution from smoke

• Deforestation

• Release of methane and hydrogen sulfide

• Release of carbon dioxide

What is the main challenge in finding suitable locations for geothermal power plants?

• Finding areas with abundant rainfall

• Finding areas with high solar radiation

• Locating high-temperature geothermal fields

• Identifying regions with strong winds

What is a potential risk of intensive geothermal drilling near tectonic plate boundaries?

• Causing tsunamis

• Increased volcanic activity

• Melting polar ice caps

• Triggering earthquakes

What new source of geothermal energy is being explored?

• Desert sands

• Polar ice caps

• Mid-ocean volcanoes

• Deep sea trenches

What is the role of electromagnetic monitoring in geothermal energy?

• To increase energy output

• To enhance heat absorption

• To detect seismic risks

• To reduce drilling costs