Question

______ is added to the filtered river water to kill harmful germs present in it.

Answer 1

Chlorination:

• The filtered and aerated water is chlorinated by adding chlorine to it.
• Chlorine kills all harmful germs.
• Chlorination of water is done to make it free from all harmful micro-organisms.
• The purified and chlorinated water is supplied to our homes through a network of water pipes.

Therefore, chlorine is added to the filtered river water to kill harmful germs present in it.