This type of energy is not always predictable.

Wind energy.

Explanation:

In this way, the biggest shortcoming of wind energy, which is that it is not always stable and predictable, is solved by the new technology. It goes without saying that this impressive and innovative combination of wind as a renewable energy source and the power of water as storage energy has a lot to offer in the energy production field.

d.

explanation:

answer; /// i believe that the correct answer is (50%);