What is the main advantage of the manufacturing of oxygen gas by the electrolysis of water?

What are the main advantages of a dam.

During the manufacture of Chlorine by the electrolysis of brine, the by-products are

Number of moles of oxygen liberated by electrolysis of 90g of water

One of the methods for the manufacture of H_2O_2 involve the electrolysis of

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is

What are the advantages of rain water harvesting?