Question -
Answer -
The different forms of energy that can be obtained from the ocean are tidal energy, wave energy and ocean thermal energy. Following are the limitations of the energy obtained from ocean:
• The relative positioning of the earth, the sun and the moon has an impact on the tidal energy.
• For the conversion of tidal energy into electricity, high dams are required.
• To obtain electricity from wave energy, very strong waves are required.
• For trapping the ocean thermal energy, there should be a temperature difference of more than 20°C between hot surface water and the cold water at a depth.