Class 9 Science — Chapter 12: Improvement in Food Resources
90 practice questions · 30 Easy · 30 Medium · 30 Hard
Free NCERT-aligned multiple-choice practice for Class 9 Science, Chapter 12 (Improvement in Food Resources). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 90.
Sample questions
Crop yield can be improved by:
HYV seeds are bred for better yield, disease resistance, etc.
Nitrogen is fixed in soil naturally by:
Root nodules of legumes host Rhizobium bacteria that fix atmospheric N.
Growing two or more crops simultaneously on the same piece of land is called:
Mixed cropping reduces risk of crop failure and uses nutrients efficiently.
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