Gliders depend on the following energy for their flight:

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Gliders depend on the following energy for their flight:

1. wind energy
2. electrical energy
3. heat energy
4. chemical energy

Correct Option: A

The engineless airplanes, called gliders, depend totally on wind energy for their flight. Special surfaces on the wings of the planes can be manipulated by the pilot to change the way air flows around the wings, thereby controlling the lifts and the altitude of the plane.

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