NEET Botany Sewage Treatment MCQ Question
If a sewage treatment plant receives 500 million gallons of sewage daily, and only 70% of this is treated due to capacity constraints, how much untreated sewage is discharged directly into rivers each day?
150 million gallons
350 million gallons
500 million gallons
200 million gallons
Correct Answer
Detailed Explanation
The plant treats 70% of the sewage, which means 30% remains untreated. 30% of 500 million gallons equals 150 million gallons of untreated sewage.
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