CBSE Worksheet for chapter-11 Improvement in Food Resources class 9

Worksheet For class 9

Find CBSE Worksheet for chapter-11 Improvement in Food Resources class 9

CLASS-9

BOARD: CBSE

BIOLOGY Worksheet - 11

TOPIC: Improvement in Food Resources

For other CBSE Worksheet for class 9 Science check out main page of Physics Wallah.

  1. The chief cereal crop of India is
    1. wheat
    2. sorghum
    3. maize
    4. rice
  2. Nodules with nitrogen-fixing bacteria are present in
    1. gram
    2. wheat
    3. mustard
    4. cotton
  3. Which of these is a macro nutrient?
    1. Copper
    2. Iron
    3. Chlorine
    4. Magnesium
  4. How do plants get nutrients?
  5. What is Hybridization?
  6. What is the difference between vermicomposting and green manure?
  7. How do biotic and abiotic factors affect crop production?
  8. Explain any two methods of irrigation.
  9. What is genetic manipulation? How is it useful in agricultural practices?
  10. What are macro-nutrients and why are they called macronutrients?

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