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प्रश्न
What are the limitations of energy that can be harnessed from the sea?
उत्तर
The limitations of the energy that can be harnessed from the sea are as follows.
1. Very strong waves are required to obtain electricity from wave energy. Such strong waves are not available in the sea all the time.
2. Tidal energy depends on the relative positions of the earth, the moon and the sun.
3. To harness ocean thermal energy efficiently, the difference between the temperatures of the surface water (hot) and the water at a depth (cold) must be 20ºC or more.
4. Very few sites are suitable for building tidal dams.
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संबंधित प्रश्न
Write two forms in which solar energy manifests itself in sea.
Explain how tidal energy can used to generate electricity?
Why is tidal energy not likely to be a potential source of energy?
State two ways in which the energy of sea-waves can be harnessed.
What is meant by ocean thermal energy? Explain how ocean thermal energy can be used to generate electricity.
What is tidal energy ? Explain in brief.
What is ocean energy? Explain in brief.
Wave energy is caused due to:
Choose the incorrect statement regarding wind power.
Write two different ways of harnessing energy from ocean.
