Question

Which of the following can be harnessed from the sea?

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

Answer 1

Answer: (A), (B), (C)

The correct options are
A

1,2 and 5

B

1,2 and 3

C

3,4 and 5

Tidal energy taps the difference in sea level between high tides and low tides which is harnessed to generate electricity. Wave energy is the kinetic energy of the waves which is harnessed to generate electricity. Ocean thermal energy taps the temperature difference between the water at the top surface and at a certain depth to evaporate and condense liquid ammonia, which is further used to turn turbines.