CBSE Worksheet for chapter-12 Improvement in Food Resources class 9

Worksheet For class 9

Find CBSE Worksheet for chapter-12 Improvement in Food Resources class 9



BIOLOGY Worksheet - 12

TOPIC: Cell : Improvement in Food Resources

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

  1. Which of the following is not a characteristic of mixed cropping?
    1. Minimises risk of crop failure
    2. Set pattern of rows
    3. Harvesting and threshing of crops separately is not possible
    4. Individual marketing and consumption of crop is not possible
  2. Rotation of crops is essential for
    1. getting different kinds of crops
    2. increasing quality of minerals
    3. increasing fertility of soil
    4. increasing quality of proteins
  3. How do stored food grain losses occur?
  4. What are the differences between broilers and layers and in their management?
  5. Discuss the implications of the following statement:
    “It is interesting to note that poultry is India’s most efficient converter of low fibre foodstuff (which is unfit for human consumption) into highly nutritious animal protein food.”
  6. What are the advantages of composite fish culture?
  7. What is pasturage and how is it related to honey production?
  8. What are the benefits of cattle farming?
  9. For increasing production, what is common in poultry, fisheries and bee-keeping?
  10. How do good animal husbandry practices benefit farmers?

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