Renewable Energy

What percentage of the total energy consumed by humans is derived from fossil fuels?

• 20%

• 40%

• 60%

• Over 80%

Which of the following is a challenge associated with renewable energy?

• High greenhouse gas emissions

• High operating costs

• Intermittency and environmental disruption

• Inability to be replenished

Why are renewable energy prices generally stable over time?

• High maintenance costs

• Free and reliable fuel sources

• Constant technological failures

• Dependence on fossil fuels

Which of the following renewable energy sources does not produce air pollution emissions?

• Wind

• Geothermal

• Biomass

• All of the above

What is an indirect source of emissions for renewable energy?

• Combustion of fuel

• Operation of facilities

• Installation and manufacturing parts

• Power generation