(a) Explain the relationship between sanitation and disease.
(b) Name two chemicals used to disinfect the water.
(a) Sanitation and diseases are related to each other because lack of sanitation can cause diseases.
Sanitation involves proper disposal of sewage from our houses to public places. So in which places have sanitation there will no diseases occur. But if sanitation is not any place, then there will be various types of diseases that occur and spread. So sanitation is a must to keep any places to avoid diseases.
(b) Two chemicals used to disinfect the water are chlorine and ozone.