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“Sustainable energy refers to a way we can use and generate energy that is more efficient and less harmful to the environment” - Leaving Cert Home Economics - Question 1(c) - 2007
Question 1(c)
“Sustainable energy refers to a way we can use and generate energy that is more efficient and less harmful to the environment”. (i) Give details of one type of rene... show full transcript
Worked Solution & Example Answer:“Sustainable energy refers to a way we can use and generate energy that is more efficient and less harmful to the environment” - Leaving Cert Home Economics - Question 1(c) - 2007
Step 1
Give details of one type of renewable energy that you would recommend when building a new house. Refer to: source, sustainability, efficiency / effectiveness.
Answer
One type of renewable energy that is highly recommended for building a new house is solar energy.
Source
Solar energy is harnessed from the sun using solar panels, which convert sunlight into electricity or heat. This makes it an abundant and widely available energy source.
Sustainability
Solar energy is sustainable as it relies on the sun, which is a renewable resource that will not deplete over time. Using solar energy also reduces dependency on fossil fuels, thus contributing to lower carbon emissions and a healthier environment.
Efficiency / Effectiveness
Solar panels have become increasingly efficient due to advancements in technology. They can now convert a significant portion of sunlight into usable energy. Furthermore, when coupled with battery storage systems, they can effectively supply energy even when sunlight is not available, providing a reliable energy source for the home.
Step 2
Describe three different methods of reducing harmful emissions in the environment.
Answer
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Switching to Natural Gas or Electric Appliances: By choosing natural gas or electric units instead of traditional coal or oil-burning systems, households can significantly reduce their carbon footprint. Natural gas burns cleaner and emits fewer pollutants compared to other fossil fuels.
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Using Smokerless Fuels: Transitioning to smokerless fuels, such as biodiesel or renewable sources, minimizes harmful emissions released during combustion. These fuels can reduce particulate matter and harmful gases that contribute to air pollution.
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Efficient Disposal of Appliances: Proper disposal of outdated appliances, like fridges and freezers, prevents harmful emissions from refrigerants, which can be potent greenhouse gases. Engaging in recycling programs ensures that these items are disposed of correctly, thus protecting the environment.