Certified Maintenance & Reliability Professional (CMRP) Practice Exam

Which of the following defines green energy?

1. Energy derived from fossil fuels

2. Energy that is non-polluting and environmentally friendly

3. Energy using nuclear reactions

4. Energy that relies on geothermal and tidal sources only

The correct answer is: Energy that is non-polluting and environmentally friendly

Green energy is defined as energy that is non-polluting and environmentally friendly. This means that it is generated from renewable sources that do not harm the environment and typically have a smaller carbon footprint compared to conventional energy sources. Green energy encompasses various types of renewable energy sources, including solar, wind, hydro, and biomass. The reason this definition is appropriate is because it highlights the primary characteristic of green energy: its sustainability and minimal environmental impact. Unlike energy derived from fossil fuels, which contributes to pollution and greenhouse gas emissions, and nuclear energy, which raises concerns about radioactive waste and accidents, green energy is associated with healthier ecosystems and a reduction in air quality deterioration. Focusing on geothermal and tidal sources alone does not represent the full spectrum of green energy. Green energy includes a diverse range of sources, which together contribute to a cleaner and more sustainable energy landscape. Thus, the definition encapsulated in the correct answer effectively conveys the essence of what green energy represents in the context of modern energy systems.