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Q. 2. What are the limitations of the energy that can be obtained from the oceans?
Answers (1)
The forms of energy that can be obtained from the ocean are mainly tidal energy, wave energy and thermal energy. The limitations in harnessing these forms of energy are the following
(i) There are very few sites in the world where high tides are regularly present.
(ii) There are very few shores where waves of high kinetic energy reach regularly.
(iii) To harness the ocean's thermal energy the Temperature difference between the surface and the depth must be at least 20 oC. Again such sites are very less.
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