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Question

Which energy can be directly 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

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B

1, 2 and 3

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C

3, 4 and 5

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D

1, 2 and 4

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Solution

The correct option is B

1, 2 and 3


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


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