A. Hydel
B. Biogas
C. Nuclear
D. None of these
🧠 Explanation:
Biogas is an alternate energy source, produced from organic waste like manure or food scraps. It’s used for cooking and electricity, reducing fossil fuel reliance. This renewable energy is a key topic in environmental science, engaging students and sustainability advocates. Understanding biogas highlights sustainable energy solutions, relevant for combating climate change. Its eco-friendly nature attracts those exploring green technologies, emphasizing its role in reducing waste and promoting clean energy in rural and urban settings worldwide.
