Question

Which of the following energies are harnessed from the sea?

1. Tidal energy

2. Wave energy

3. Ocean thermal energy

4. Solar energy

5. Geothermal energy

• A. 1,2 and 5
• B. 1,2 and 3
• C. 3,4 and 5
• D. 1, 2 and 4

Answer 1

The correct option is B

1,2 and 3

Tidal energy uses the difference in sea level between high tide and low tide to produce energy. Wave energy uses the kinetic energy of waves to produce energy. Ocean thermal energy uses the temperature difference between water at the surface and water at a depth to evaporate ammonia, which is further used to run a turbine and generate energy.