Question

Assertion(A)- in a sewage, large amount of organic matter and microbes are present reason(R)- sewage water is treated through homotrophic bacteria and there after the effluent is released to river. a- both A and R are true and R is correct explanation of A b- both A and R are true and R is not correct explanation of A c- A is true and R is wrong. d- A is wrong and R is true

Answer 1

Sewage is the municipal waste water containing mainly human excreta.It contains large quantity of organic matter and pathogenic microbes.they cant be leave as they are.so they are discharged into natural bodies like rivers.so both A and R are correct R is the correct explanation of A.