Step 1: Understanding the Question:
The question asks for a list of examples of renewable energy sources mentioned in the passage.
Step 2: Locating the Information in the Passage:
The passage gives a direct list of examples.
The second sentence states: "Solar, wind, hydroelectric, geothermal and biomass are examples of renewable energy sources."
Step 3: Final Answer:
The examples explicitly listed in the passage are solar, wind, hydroelectric, geothermal, and biomass.