What is hydroelectricity?
Q: What is hydroelectricity?
A: Hydroelectricity is electricity made by generators that are turned by the movement of water.
Q: How is it usually made?
A: It is usually made with dams that partly block a river to make a reservoir of water. Water is released, and the pressure of the dam forces the water down pipes that lead to a turbine which turns a generator and produces electricity.
Q: What percentage of the world's electricity does it produce?
A: This renewable energy method makes about one sixth of the world's electricity.
Q: Does it produce less pollution than other methods?
A: Yes, it produces less pollution than steam engines do.
Q: Are there some places where most of their electricity comes from hydroelectric sources?
A: Yes, some places such as Norway and Quebec get most of their electricity this way.
Q: Do all countries have several ways to generate electricity?
A: Yes, because all methods have advantages and disadvantages, most countries have several ways to generate electricity.
Q: Is hydroelectric energy typically preferred in many countries today?
A:Yes, for most countries today, hydroelectric energy is the preferred or one of the preferred methods.
