Hydroelectric power relies on the transfer of energy from waves through what medium? water wind the ground nuclear reactions

Option (1)

Explanation:

Hydroelectric power can be generated by the medium of water. A dam is needed to be constructed across a river, in which the waters are hold in the reservoir, and when the waters are allowed to flow, the turbine moves and this continuous moving of the turbines at a certain speed generates electricity.

Also new technologies has been developed. In the coastal region, where the waves are active, underground tidal turbines are placed that moves when are waves are frequently active. This has been approved as a safe method as the fishes and other organisms are not hurt due to the motion of the turbines.

Thus, the it is most efficient way to transfer energy from waves in order to generate electricity.

Thus, the correct answer is option (1).

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e