what does renewable energy mean ks3
Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.he heat that is used for geothermal energy can be from deep within the Earth, all the way down to Earth's core â 4,000 miles (6,400 km) down. At the core, temperatures may reach over 9,000 Â°F (5,000 Â°C). Heat conducts from the core to surrounding rock.