CBSE Class 9 Science Introductory Video: Improvement in Food Resources

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This is an introduction video for the chapter named Improvement in Food Resources for CBSE Class 9 (http://cbse.meritnation.com/cbse-scie.... Paid users can also access videos on nutrient management, crop production management through the system of irrigation, crop production, management through cropping techniques, methods and importance of crop protection and storage of grains and animal husbandry