MEDIUM
9th CBSE
IMPORTANT
Earn 100

Name two types of animal feed and write their functions.

Important Questions on Improvement in Food Resources

MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 46
What would happen if poultry birds are larger in size and have no summer adaptation capacity? In order to get small sized poultry birds, having summer adaptability, what method will be employed?
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 47
Suggest some preventive measures for the diseases of poultry birds.
MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 48

Figure below shows the two crop fields [Plots A and B] have been treated by manures and chemical fertilisers respectively, keeping other environmental factors same. Observe the graph and answer the following questions.

Why does plot B show sudden increase and then gradual decrease in yield?

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MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 48

Figure below shows the two crop fields [Plots A and B] have been treated by manures and chemical fertilisers respectively, keeping other environmental factors same. Observe the graph and answer the following questions.

Why is the highest peak in plot A graph slightly delayed?

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MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 48

Figure below shows the two crop fields [Plots A and B] have been treated by manures and chemical fertilisers respectively, keeping other environmental factors same. Observe the graph and answer the following questions.

What is the reason for the different pattern of the two graphs?

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MEDIUM
9th CBSE
IMPORTANT
NCERT Exemplar Science - Class 9>Chapter 15 - Improvement in Food Resources>Long Answer Questions>Q 49

Complete the crossword puzzle 

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Across

1.  Oil yielding plant (9)
3.  Crop grown in winter season (4)
5.  Fixed by Rhizobium (8)
9.  Common honey bee (4)

 Downward


2.  Animal feed (6)
4.  A micronutrient (5)
6. Unwanted plant in crop fields (4)
7. An exotic breed of chicken (7)
8. Bottom feeders in fish pond (7)
10. A marine fish (4)