Energy

The second prompt for Our Planet Week: Energy 🔥

Besides solar and wind power we also have things like geothermal, tidal power, and wave power 🦾 Geothermal energy is heat that is generated within the Earth. (Geo means “earth,” and thermal means “heat” in Greek.) Geothermal energy isn't entirely renewable—it will run out when the Earth does. In about 5 billion years ;)