contestada

Energy can be extracted from water by:___________
1. Exploiting its potential energy, as is done in hydroelectric and tidal plants.
2. Exploiting the temperature gradients in oceans, as is done in OTEC plants.
3. Exploiting its mechanical energy, as is done in ocean currents and surface waves.
4. Exploiting the energy in its nuclei, as is done in fusion power plants.
5. All of the above.