Practice Microbes in Sewage Treatment - 8.3 | 8. MICROBES IN HUMAN WELFARE | CBSE Grade-12 Biology
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is sewage?

💡 Hint: Think about what types of waste water need treatment.

Question 2

Easy

What does BOD stand for?

💡 Hint: Reflect on its role in measuring water cleanliness.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the first stage of sewage treatment?

  • Aerobic Treatment
  • Primary Treatment
  • Secondary Treatment

💡 Hint: Think about the steps before biological treatment.

Question 2

True or False: BOD measures the oxygen needed by microbes to decompose organic matter.

  • True
  • False

💡 Hint: Remember what BOD stands for.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Analyze how improving BOD levels in wastewater from a sewage treatment plant affects local aquatic life.

💡 Hint: Think about the balance of oxygen levels and its impact on aquatic organisms.

Question 2

Propose potential community initiatives to reduce sewage output based on urbanization trends.

💡 Hint: Consider both behavioral changes and policy impacts.

Challenge and get performance evaluation