desalinization is a method in which the salt is taken out of salt water in order to produce fresh water…

Brief Explanations:

Desalination processes, such as reverse osmosis or distillation, require significant energy input (for pumps, heating etc.). Building and maintaining desalination plants also incurs high costs (equipment, infrastructure, operation). These factors make the overall desalination process expensive compared to other water - sourcing methods like groundwater extraction or surface water treatment in many cases.

Answer:

It is expensive.