Sewage Discharge and Water Pollution — NEET Biology
📚 Practice Concept📖 NCERT Source
So the untreated sewage is often discharged directly into rivers leading to their pollution and increase in water-borne diseases.
Practice This Concept
QuestionPractice Question
Why is untreated sewage dangerous for water bodies?
📖 Solution & NCERT Explanation
View solution & NCERT explanation
Correct answer: C — It raises organic load and pathogens
Untreated sewage causes oxygen depletion and spreads disease.
❓ Frequently Asked Questions
What does NCERT say about So untreated sewage often?
So the untreated sewage is often discharged directly into rivers leading to their pollution and increase in water-borne diseases.
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Microbes in Human Welfare, Class 12 NCERT Biology.
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank
MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.
176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
Free to start · Hindi + English · 43,000+ questions · NEET 2026 pattern
Related Concepts from Microbes in Human Welfare