Improvement in Food Resources
Jharkhand Board · Class 9 · Science
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Which of the following crops are grown during the Kharif season?
What are the three main nutrients supplied by fertilizers?
What is the main difference between mixed cropping and intercropping?
Which irrigation method is most suitable for areas with insufficient canal flow?
Sample Questions
Which of the following are advantages of using manure? (Select all correct options)
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Improves soil structure, Increases water holding capacity, Adds organic matter to soil, Helps in recycling farm waste
Manure improves soil structure, increases water holding capacity in sandy soils, adds organic matter, and helps recycle farm waste. Unlike fertilizers, manure doesn't provide immediate nutrition but releases nutrients slowly.
Which of the following are characteristics desired in crop variety improvement? (Select all correct options)
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Higher yield, Disease resistance, Improved quality, Wider adaptability
Crop variety improvement aims for higher yield, disease resistance, improved quality, and wider adaptability. Shorter (not longer) maturity duration is desired as it allows multiple crops per year and reduces production costs.
What are weeds?
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Unwanted plants in cultivated fields
Weeds are unwanted plants that grow in cultivated fields. Examples include Xanthium (gokhroo), Parthenium (gajar ghas), and Cyperus rotundus (motha). They compete with crops for nutrients, space, and light.
Which cattle species are commonly found in India? (Select all correct options)
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Bos indicus (cows), Bos bubalis (buffaloes)
Indian cattle belong to two main species: Bos indicus (cows) and Bos bubalis (buffaloes). These are well-adapted to Indian climatic conditions and are used for both milk production and agricultural work.
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