Winds are caused by air moving around in the atmosphere. wind turbines harness the mechanical energy in wind and convert it into electricity. what is the source of the mechanical energy in wind? a. solar energy b. geothermal energy c. chemical energy d. nuclear energy

The correct answer is (a) Solar Energy

The difference in temperature between the equator and pole of the earth results in formation of wind patterns. The difference in absorption of solar energy leads to buoyancy forces which results in rotation of earth. This rotation of earth causes the wind flow. Hence, the solar energy causes wind to flow which ultimately serves as a source of mechanical energy in wind.

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