mid 12

What is a renewable energy source?

• Nuclear energy is a renewable source.

• Fossil fuels are considered renewable energy.

• Geothermal energy is not a renewable source.

• A renewable energy source is an energy source that is naturally replenished, such as solar, wind, or hydro energy.

Name three types of renewable energy sources.

• Solar energy, wind energy, hydroelectric energy

• Natural gas

• Coal energy

• Nuclear energy

How does solar energy work?

• Solar energy is harnessed by converting sunlight into electricity using photovoltaic cells.

• Solar energy is generated by burning fossil fuels.

• Solar panels work by absorbing heat and releasing steam.

• Solar energy is produced by nuclear reactions in the sun.

What are the advantages of wind energy?

• Advantages of wind energy include being renewable, reducing greenhouse gas emissions, lowering energy costs, creating jobs, and stimulating local economies.

• Wind energy is the most expensive form of energy available.

• It significantly increases greenhouse gas emissions.

• Wind energy is non-renewable and depletes natural resources.

What is the role of geothermal energy in conservation?

• Geothermal energy has no impact on reducing greenhouse gas emissions.

• Geothermal energy is a non-renewable resource that increases fossil fuel use.

• Geothermal energy contributes to conservation by providing a renewable energy source that reduces fossil fuel dependence and lowers emissions.

• Geothermal energy is primarily used for nuclear power generation.

Explain how biomass can be used as a renewable energy source.

• Biomass is only used for producing solar energy.

• Biomass can be used as a renewable energy source by converting organic materials into biofuels, burning it for heat, or producing biogas for electricity.

• Biomass cannot be replenished and is a finite resource.

• Biomass is primarily used for nuclear energy production.

What is the difference between renewable and non-renewable energy?

• Renewable energy is sustainable and replenishable, while non-renewable energy is finite and depleting.

• Renewable energy is always more expensive than non-renewable energy.

• Renewable energy is derived only from fossil fuels.

• Non-renewable energy sources can be replenished quickly.

How does hydropower generate electricity?

• Hydropower generates electricity through solar panels capturing sunlight.

• Hydropower generates electricity by burning fossil fuels to heat water.

• Hydropower generates electricity by using wind turbines to harness air movement.

• Hydropower generates electricity by converting the kinetic energy of flowing water into mechanical energy through turbines, which then drives a generator.

What are the environmental benefits of using renewable energy?

• Increased fossil fuel consumption

• Higher levels of carbon emissions

• The environmental benefits of using renewable energy include reduced greenhouse gas emissions, decreased air pollution, and conservation of natural resources.

• Destruction of wildlife habitats

What is the significance of energy efficiency in renewable energy?

• Energy efficiency enhances the effectiveness and sustainability of renewable energy sources.

• Energy efficiency only applies to non-renewable energy systems.

• Energy efficiency is irrelevant to renewable energy sources.

• Energy efficiency reduces the cost of fossil fuels.