Question

Untreated human excreta is a health hazard. It may also cause

(i) Soil pollution (ii) water pollution (iii) None of these (iv) Both of these​

Answer 1

Untreated human excreta is a health hazard. It may also cause

(i) Soil pollution (ii) water pollution (iii) None of these (iv) Both of these​

ans -  Both of these​

Untreated human excretions are a health hazard. It causes pollution of soil and water including the underground water. ... When this contaminated water is used for drinking, it can cause diseases such as cholera, typhoid, hepatitis, dysentery, etc., which may even lead to death.

Answer 2

iv.) both of these

Untreated human excretions are a health hazard. It causes pollution of soil and water including underground water. Thus, it contaminates the sources of water from which people collect water for drinking and household purposes. When this contaminated water is used for drinking, The polluted water contains disease-causing bacteria which can spread epidemics like cholera, meningitis, etc. which may even lead to death.

Hence Untreated human excreta is a health hazard.