Renewable energy in focus.

What is the primary source of energy for solar power generation?

• Sunlight

• The moon

• Mars

• Coal

Which renewable energy technology harnesses the kinetic energy of flowing water?

• Poseidon

• Solar

• Hydropower

• Hot tub

 What is the function of a wind turbine in wind energy generation?

• To harness the power of the sun.

• To convert the kinetic energy of water into mechanical energy, which is then converted to electricity.

• To make the countryside look ugly.

• To convert the kinetic energy of wind into mechanical energy, which is then converted to electricity.

What is the main disadvantage of using biomass for energy production?

• Expensive to use.

•  Air pollution and greenhouse gas emissions during combustion.

• Heavy to transport.

• It smells strange.

What material is commonly used in photovoltaic cells to convert sunlight into electricity?

• Silicon

• copper

• P&N

• Coolant

Which renewable energy source involves the heating of the Earth's interior to generate electricity?

• Solar energy
• Wind energy
• Hydro energy
• Geothermal energy

What is the average capacity factor for solar power systems in most regions?

• 10-20%
• 15-20%

• 20-30%
• 25-35%

Which renewable energy technology uses mirrors or lenses to concentrate sunlight onto a small area to generate heat?

• Solar Photovoltaics
• Wind Turbines
• Hydroelectric Power
• Concentrated Solar Power

What is the primary challenge of integrating intermittent renewable energy sources into the grid?

• High cost of renewable energy technologies
• Inability to store excess energy
• Lack of government support
• Intermittency and unpredictability of renewable energy sources

What is the primary gas produced by anaerobic digestion of organic matter in biogas production?

• Carbon dioxide
• Oxygen
• Nitrogen
• Methane