Which statement about alternative energy sources is true according to the material?

• A. Only tidal power is considered an alternative energy source
• B. There are multiple alternative energy sources, including tidal power, wind turbines, solar power, and chemical (fuel cells).
• C. Fossil fuels are the only energy source described
• D. Cogeneration is a type of energy source

Answer: (B)

Alternative energy sources include a range of options, not just one. The material describes several different ways to generate energy that don’t rely on fossil fuels, showing a variety of approaches. Tidal power uses the movement of ocean tides to create electricity, wind turbines convert wind into electrical energy, solar power captures sunlight to generate electricity, and chemical energy in fuel cells produces power through chemical reactions. Because it lists multiple distinct sources, this statement best matches what the material conveys. The other options aren’t accurate because one claims only tidal power exists as an alternative source, another says fossil fuels are the only described, and another treats cogeneration as a type of energy source rather than a method of producing both electricity and useful heat from a fuel.