What is renewable energy?

• Energy from sources that can be replenished

• Energy from fossil fuels

• Energy that cannot be used again

• Energy that produces high CO2 emissions

Which of the following is NOT a type of renewable energy?

• Wind

• Solar

• Natural gas

• Biomass

What is one advantage of renewable energy over fossil fuels?

• Renewable energy is more expensive

• Renewable energy produces more CO2

• Renewable energy sources are limited

• Renewable energy produces far less CO2

Which of the following statements is true about biofuels and bioenergy?

Why is nuclear energy considered carbon-free but not renewable?

• It emits CO2

• It uses uranium, which cannot be replenished

• It is not used for electricity generation

• It is more expensive than fossil fuels

What percentage of the world's electricity was made from renewable energy sources in 2020?

• 10%

• 28%

• 50%

• 75%

Which renewable energy source has been widely used since the invention of the electric grid?

• Solar power

• Wind power

• Hydropower

• Geothermal energy

What is a challenge associated with renewable energy sources like wind and solar?

• They are always available

• They produce high CO2 emissions

• Their electricity generation is variable

• They are the most expensive energy sources

What percentage of the world's electricity came from renewable sources in 2020?

• 9%

• 17%

• 28%

• 72%

Which renewable energy source uses light from the sun to generate electricity?

• Wind power

• Bioenergy

• Solar photovoltaics

• Geothermal