Alternative Energy Sources and Impacts

The video explores five alternative energy sources: geothermal, solar photovoltaic, biomass, hydroelectric, and wind energy. It highlights the benefits and challenges of each, emphasizing their potential to reduce reliance on fossil fuels and mitigate climate change. The video also discusses the efficiency, cost, and environmental impact of these renewable energy sources.

What is a major reason for the shift towards alternative energy sources?

• They are cheaper than fossil fuels.

• They are easier to develop.

• They are renewable and less polluting.

• They are more reliable than fossil fuels.

What is the primary source of geothermal energy?

• Wind currents

• Ocean tides

• Heat from the Earth's core

• Solar radiation

Which country is known for its extensive use of geothermal energy?

• Brazil

• United States

• China

• Iceland

What is a current limitation of solar photovoltaic energy?

• It is too expensive to produce.

• It cannot be used in small-scale applications.

• It is not efficient in storing electricity.

• It produces harmful emissions.

What is the main component of solar panels that converts sunlight into electricity?

• Batteries

• Photons

• Generators

• Turbines

What is biomass energy primarily derived from?

• Fossil fuels

• Living organisms

• Nuclear reactions

• Minerals

Which of the following is a direct method of using biomass energy?

• Using it in solar panels

• Storing it in batteries

• Burning it to create heat

• Converting it into biofuel

What is a potential environmental impact of hydroelectric power?

• Air pollution

• Water pollution

• Disruption of natural water bodies

• Soil erosion

Which country is the largest producer of hydroelectricity?

• India

• China

• Brazil

• United States

What is a significant advantage of wind energy?

• It produces no air or water pollution.

• It is the most efficient energy source.

• It requires no maintenance.

• It is the cheapest energy source.