The correct answer would be the Sun or sunlight
<span>Cork cells are plant cells on the outer edge of the trunks/limbs of woody plants. The cell wall is made of suberin, which doesn't let gas or water through. In essence, this helps keep the water in and unwanted things (like pathogens) out.
The inside of the cell is usually empty, but may have a few traces of things depending on species. These cells don't replicate and are generally considered to be dead.</span>
Answer: Option (A) is the correct answer.
Explanation:
In a gravitational field, energy possessed by an object is known as gravitational potential energy.
Whereas kinetic energy is the energy possessed by an object due to its motion is known as kinetic energy.
Therefore, out of the given options description of water flowing downhill and spinning turbines is an example of gravitational potential energy transforming into kinetic energy.