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The video explores geothermal energy, a renewable source with minimal carbon emissions. It explains the Earth's mantle as a heat source and describes methods to harness this energy, such as geothermal power plants and heat pumps. Despite its potential, geothermal energy faces challenges like high costs and environmental impacts. However, new technologies offer solutions, making it a promising energy source.

What is the primary source of geothermal energy?

• Earth's core and mantle

• Wind currents

• Solar radiation

• Ocean tides

How do geothermal power plants generate electricity?

• By using wind turbines

• By burning fossil fuels

• By capturing solar energy

• By using steam from heated groundwater

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

• They are at least twice as energy efficient

• They are less efficient

• They are more expensive to operate

• They require more maintenance

Why does geothermal energy account for only a small percentage of global energy production?

• It is too expensive to produce

• It is not a renewable resource

• It is limited by location and cost

• It is less efficient than fossil fuels

What environmental concern is associated with geothermal drilling?

• Release of carbon dioxide

• Depletion of water resources

• Release of methane and hydrogen sulfide

• Increase in air pollution

Which regions are more suitable for geothermal power plants due to their geological features?

• Flat plains

• Polar regions

• Regions near active volcanoes and tectonic plate boundaries

• Desert regions

What new technology is helping to address the environmental impacts of geothermal energy?

• Solar panels

• Wind turbines

• Emission control systems

• Hydroelectric dams