What are the disadvantages of generating hydroelectricity ?

What are the advantages of generating hydroelectricity ?

What are the disadvantages of solar cells.

What are the disadvantages of nuclear power plants?

Write three disadvantages of friction.

What are the disadvantages of fossils fuels?

What are the advantages and disadvantages of using a solar cooker ? Are there places where solar cookers would have limited utility?

What are the advantages and disadvantages of crystallization over evaporation?

How can geothermal energy be used to generate electricity?

What is hydro-electric generator?