A: More sewage treatment plants are required | vedclass

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(B) Assertion $(A)$ is true because the increasing human population generates a massive amount of sewage,necessitating more $STPs$ to prevent water po

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$A$ and $R$ are both true,but $R$ is not the correct explanation of $A$.

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(B) Assertion $(A)$ is true because the increasing human population generates a massive amount of sewage,necessitating more $STPs$ to prevent water pollution.Reason $(R)$ is true because during the secondary treatment of sewage,anaerobic sludge digesters are used where anaerobic bacteria digest the organic matter,producing gases like methane,hydrogen sulfide,and carbon dioxide,which constitute biogas.However,the production of biogas in $STPs$ is a beneficial byproduct of the treatment process,not the primary reason why we need more $STPs$ (the primary reason is the need to treat the increasing volume of waste to protect the environment). Therefore,$R$ is not the correct explanation of $A$.

$A$: More sewage treatment plants are required in proportion to the human population.
$R$: Biogas,which is a fuel energy,is produced in $STPs$.

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$A$: More sewage treatment plants are required in proportion to the human population.$R$: Biogas,which is a fuel energy,is produced in $STPs$.