Practice Practice Questions - 9 | Chapter 3: Biology and Human Welfare | ICSE Class 12 Biology
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is Rhizobium and its role in agriculture?

💡 Hint: Think about legumes and their relation to soil nitrogen.

Question 2

Easy

Define immunity in simple terms.

💡 Hint: Consider how your body reacts when you get a cold.

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 primary function of Rhizobium in agriculture?

  • Nitrogen fixation
  • Soil erosion
  • Water retention

💡 Hint: Think about plants that grow in nitrogen-poor soils.

Question 2

True or False: Active immunity results from receiving antibodies from another source.

  • True
  • False

💡 Hint: Consider the difference between active and passive immunity.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Analyze the social implications of drug addiction within a community setting. What roles do education and family support play in recovery?

💡 Hint: Think about how addiction affects relationships and community safety.

Question 2

Evaluate the effectiveness of vaccination in controlling infectious diseases. Use examples of diseases prevented by vaccines.

💡 Hint: Consider the societal benefits of high vaccination rates.

Challenge and get performance evaluation