What are the advantages and disadvantages of crystallization over evaporation?

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

What are the disadvantages of solar cells.

What are the advantages of nuclear energy?

What are the advantages of ocean thermal energy?

What are the disadvantages of fossils fuels?

Write three disadvantages of friction.

What are the disadvantages of nuclear power plants?

How are the advantage of detergents over soaps?

What are the advantages of using CNG and LPG as fuels?