Respuesta :
Answer:
(i) Hydroelectric power is a renewable energy source as it is replenished by natural resources like the sun, unlike coal-fired power plants that generate electricity using coal which is not a renewable energy source.
(ii) It is expensive regarding the cost of building dams and reservoirs, not only that it is dependent on the amount of water available as places like the deserts would find it difficult to generate electricity all year round considering the unavailability of rain in some months of the year.
Explanation:
Hydroelectric power plants produce electricity when water energy from a water source, examples are dams and reservoirs which are caused to flow so as to turn rotors on a turbine, thereby converting this process to electricity. Coal-fired power plants are also used to produce electricity through the burning of coal (fossil fuel).
An advantage of using hydroelectric power over coal-fired power plants is that Hydroelectric power is a sustainable and renewable energy source since it is supplied by natural resources from the sun.
What is hydroelectric power?
Hydroelectric power is the electricity generated by generators powered by turbines that transform the potential energy of rapidly flowing water into mechanical energy.
Hydroelectric power is a sustainable and renewable energy source since it is supplied by natural resources from the sun, as opposed to coal-fired power plants(non-renewable energy) that utilize charcoal to produce electricity.
One potential disadvantage of hydroelectric power plants is that: It is costly in terms of the expense of constructing dams, and it is also dependent on the quantity of water.
Learn more about hydroelectric power here:
https://brainly.com/question/8934285
