Improvement in Food Resources
16 solved questions from Class 9 Science, each with the full working. Tap any question to see the step-by-step solution.
- 1 What is the fundamental scientific concept introduced in the chapter 'Improvement in Food Resources'? medium MCQ Key Concept & Definition
- 2 Which of the following is an important application or observation related to 'Improvement in Food Resources'? easy MCQ Practical Application
- 3 What primary question does the chapter 'Improvement in Food Resources' aim to answer? medium MCQ Core Scientific Inquiry
- 4 Why is the study of 'Improvement in Food Resources' essential for students in class-9? hard MCQ Importance & Significance
- 5 Which key practice is recommended while studying topics in 'Improvement in Food Resources'? medium MCQ Scientific Method
- 6 What is the primary topic or theoretical principle explored in 'Improvement in Food Resources' (Class 9 SCIENCE)? medium MCQ Chapter Core Principle
- 7 Which key mechanism or analytical rule is highlighted in 'Improvement in Food Resources'? medium MCQ Key Analytical Mechanism
- 8 In a region, the yield per acre of wheat increased from 30 quintals to 50 quintals after adopting a new seed variety. What is the percentage increase in yield? medium 2 marks Percentage increase in crop yield
- 9 A GM maize variety yields 8 tonnes per hectare. To produce 2000 tonnes of maize using this variety, how many hectares of land are required? hard 4 marks Calculating area for target yield
- 10 Explain how the Green Revolution in India led to improved food resources and discuss its long‑term environmental impacts. hard 5 marks Impact of Green Revolution
- 11 A farmer wants to produce 2400 quintals of lentils using a new variety that yields 8 quintals per hectare. How many hectares of land are required? medium 2 marks Area requirement for a given yield
- 12 Which of the following mechanisms best explains nitrogen fixation in legume root nodules? hard MCQ 4 marks Nitrogen fixation mechanism
- 13 A farmer grows 12 acres of soybean and obtains 250 kg of yield per acre. Find the total yield in tonnes. easy 1 mark Yield calculation
- 14 A farmer cultivates 5 hectares of rice and obtains a yield of 4.2 tonnes per hectare. Find the total yield in tonnes. easy 1 mark Yield per hectare
- 15 A farmer wants to produce 3000 tonnes of wheat. He has two options: 1) use a high‑yield variety that yields 12 tonnes per hectare, or 2) use a conventional variety that yields 8 tonnes per hectare. Calculate (a) the hectares required for each option, (b) the land saved by using the high‑yield variety. Then explain why reducing land use can be beneficial. hard 5 marks Land requirement and yield comparison
- 16 Which of the following practices contributed most to the increase in food production during the Green Revolution in India? medium MCQ 2 marks Green Revolution strategies