What are the limitations of extracting energy from :
I ) The Wind II) Waves III) tides .

Explanation

(a) Windmills harness wind energy. One of the limitations of extracting energy from wind is that a windmill requires wind speeds more than 15 km/h to generate electricity. Also, a large number of windmills are required, which cover a huge area.
(b) Very high tides are required to extract energy from tides. strong ocean waves are required to extract energy from waves .
(c) Very high tides are required to extract energy from tides. Also, occurrence of tides depends on the relative positions of the sun, moon, and the earth.