1. What are alternative energy sources?

2. Name some common renewable energy sources.

3. How does solar power work?

4. Explain the concept of wind energy.

5. What is biomass energy?

6. Describe the benefits of using hydroelectric power.

7. What is geothermal energy?

8. How does tidal energy work?

9. Explain the concept of biofuels.

10. What are some advantages of using alternative energy sources?