Which natural energy source never runs out?

What year was the first solar cell invented?

Which country leads the world in geothermal energy production?

What percentage of Earth's surface is covered by sunlight at any moment?

Which ancient civilization first used windmills for grinding grain?

What is the world's largest solar power plant?

Which natural energy source comes from decomposing organic matter?

What percentage of homes in Iceland use geothermal heating?

Which famous inventor created the first hydroelectric power plant?

How many hours of sunlight does Earth receive each day?

Which country built the first modern wind farm?

What percentage of the Sun's energy reaches Earth?

Which natural energy source was first used to make electricity?

What year was the first wind turbine used to generate electricity?

Which country has the most active volcanoes for geothermal energy?

What is the most abundant renewable energy source on Earth?

Which ancient civilization first used solar energy to light sacred fires?

How many homes can 1 megawatt of wind energy power?

What percentage of the world's population relies on biomass for cooking?

Which renewable energy source provides the most electricity globally?