Edzy
AI TutorResourcesToolsCompareBuy
SearchDownload AppLogin
Edzy

Edzy for Classes 6-12

Edzy is a personal AI tutor for CBSE and State Board students, with curriculum-aligned guidance, practice, revision, and study plans that adapt to each learner.

  • Email: always@edzy.ai
  • Phone: +91 96256 68472
  • WhatsApp: +91 96256 68472
  • Address: Sector 63, Gurgaon, Haryana

Follow Edzy

Browse by Class

  • CBSE Class 6
  • CBSE Class 7
  • CBSE Class 8
  • CBSE Class 9
  • CBSE Class 10
  • CBSE Class 11
  • CBSE Class 12
Explore the CBSE resource hub

Explore Edzy

  • Study Resources
  • Free Study Tools
  • Best Apps for Board Exams
  • Edzy vs ChatGPT
  • About Us
  • Why We Built Edzy
  • Blog
  • CBSE AI Tutor

Support & Legal

  • Help & FAQs
  • Accessibility
  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Cookie Policy
  • Site Directory

© 2026 Edzy. All rights reserved.

Curriculum-aligned learning paths for students in Classes 6-12.

MH
Question Practice

Why is it important to reduce the BOD of sewage effluent before discharge?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Biology
Biology
Microbes in Human Welfare
Question Bank

Why is it important to reduce ...

Single Answer MCQ
Q-00084577

Why is it important to reduce the BOD of sewage effluent before discharge?

1

To increase the oxygen level in water

2

To prevent pollution of water bodies

3

To increase microbial growth

4

To eliminate all pathogens

Previous QuestionNext Question

Video Explanation

Answer

Solution:

Watch Video Solution

Login to get access

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

Which type of bacteria is primarily involved in the fermentation of milk to produce curd?

Single Answer MCQ
View explanation
Q2.

What gas is produced by yeast during the dough fermentation process?

Single Answer MCQ
View explanation
Q3.

Which of the following products is made by fermenting palm sap?

Single Answer MCQ
View explanation
Q4.

What role do lactic acid bacteria play in the human body?

Single Answer MCQ
View explanation