Class 9th Science Improvement in Food Resources Practice Questions

A. Multiple Choice Questions (20)

Q1. The major activities for improving crop yields are:
a) Crop variety improvement
b) Crop production improvement
c) Crop protection management
d) All of these

Q2. Which of these is a kharif crop?
a) Wheat
b) Paddy
c) Mustard
d) Gram

Q3. Wheat and mustard are grown in:
a) Winter (Rabi) season
b) Summer (Kharif) season
c) Both
d) None

Q4. Biofertilizers are:
a) Pesticides
b) Microorganisms that enrich nutrients
c) Organic manure
d) None

Q5. Intercropping means:
a) Growing one crop
b) Growing two crops simultaneously in alternate rows
c) Growing crops in rotation
d) Removing weeds

Q6. Composite fish culture includes:
a) Many fish species with same food habit
b) Only one species
c) Many species with different food habits
d) Only marine fish

Q7. Which is a micronutrient?
a) Nitrogen
b) Potassium
c) Zinc
d) Phosphorus

Q8. Vermicomposting is done by:
a) Bacteria
b) Earthworms
c) Fungi
d) Algae

Q9. Poultry farming deals with rearing of:
a) Cattle
b) Birds
c) Fish
d) Honey bees

Q10. Fodder crops are grown for:
a) Humans
b) Livestock
c) Industry
d) None

Q11. Apiculture is rearing of:
a) Silkworms
b) Honey bees
c) Fish
d) Poultry

Q12. A leguminous crop helps in replenishing:
a) Phosphorus
b) Nitrogen
c) Potassium
d) Sulphur

Q13. Which of these is a marine fish?
a) Rohu
b) Catla
c) Hilsa
d) Mrigal

Q14. HYV seeds require:
a) Less water
b) More fertilizers and irrigation
c) No care
d) None

Q15. Weeds compete with crops for:
a) Nutrients
b) Water
c) Space
d) All of these

Q16. Green manure is obtained by:
a) Decomposing animal waste
b) Growing plants like sunhemp, berseem, ploughing into soil
c) Using chemical fertilizer
d) None

Q17. Poultry birds commonly suffer from:
a) Fungal infections
b) Bacterial infections
c) Viral infections
d) All

Q18. Milch animals are:
a) Milk yielding
b) Draught animals
c) Meat yielding
d) None

Q19. Crop rotation helps in:
a) Maintaining soil fertility
b) Increasing weeds
c) Stopping irrigation
d) Reducing yield

Q20. Bee keeping provides:
a) Honey
b) Wax
c) Pollination services
d) All of these

B. True/False (10)

Q21. Paddy is a rabi crop.
Q22. Biofertilizers are chemicals that increase soil fertility.
Q23. Mixed cropping helps in risk reduction of crop failure.
Q24. Compost is prepared by decomposition of organic waste.
Q25. Gram is a kharif crop.
Q26. Apiculture improves crop pollination.
Q27. HYV seeds grow without fertilizers.
Q28. Catla is a marine fish.
Q29. Manures improve soil texture and fertility.
Q30. Poultry is a source of eggs and meat.

C. Fill in the Blanks (10)

Q31. Crops grown in rainy season are called ______ crops.
Q32. Wheat and mustard are examples of ______ crops.
Q33. ______ is the practice of growing different crops on the same field in successive seasons.
Q34. The rearing of honey bees is called ______.
Q35. Fish culture in ponds is called ______.
Q36. ______ is used for making compost quickly.
Q37. Plants like gram and peas are ______ crops.
Q38. Cross-breeding in animals is used to improve ______.
Q39. ______ crops are grown for feeding livestock.
Q40. Marine fish include ______ and ______.

D. Assertion–Reason (10)

Q41. Assertion: Crop rotation helps in maintaining soil fertility.
Reason: Different crops require different nutrients.

Q42. Assertion: Intercropping increases productivity.
Reason: Two or more crops are grown in alternating rows.

Q43. Assertion: HYV seeds give higher yield.
Reason: They require less irrigation and fertilizers.

Q44. Assertion: Vermicomposting is eco-friendly.
Reason: It uses earthworms to decompose organic waste.

Q45. Assertion: Poultry farming is highly profitable.
Reason: Poultry birds grow fast and lay eggs frequently.

Q46. Assertion: Fertilizers are better than manures.
Reason: Fertilizers provide concentrated nutrients.

Q47. Assertion: Apiculture provides only honey.
Reason: Honey bees also help in pollination.

Q48. Assertion: Weeds are useful in agriculture.
Reason: They increase competition with crops.

Q49. Assertion: Composite fish culture gives high yield.
Reason: Different fish species have different food habits.

Q50. Assertion: Crop protection management reduces losses.
Reason: It prevents damage from pests, diseases and weeds.

E. Very Short Answer – 1 Mark (10)

51. Define mixed cropping.
52. Name one kharif and one rabi crop.
53. What is organic farming?
54. Name one exotic breed of cattle.
55. Define biofertilizer.
56. What is apiculture?
57. Give two examples of fodder crops.
58. Name two marine fish.
59. Write one advantage of crop rotation.
60. What is pisciculture?

F. Short Answer – 2 Marks (10)

61. Write two differences between manures and fertilizers.
62. State two advantages of biofertilizers.
63. Differentiate between kharif and rabi crops with examples.
64. What are weeds? Name two weed control methods.
65. Explain two benefits of organic farming.
66. Mention two advantages of intercropping.
67. Define composite fish culture. State one advantage.
68. Why are milch animals important?
69. List two challenges of poultry farming.
70. Mention two differences between apiculture and sericulture.

G. Short Answer – 3 Marks (10)

71. Explain crop variety improvement methods.
72. State three features of HYV seeds.
73. Write three differences between mixed cropping and intercropping.
74. What is crop rotation? Write its advantages.
75. Explain three problems faced in storage of food grains.
76. What are manures? Explain three advantages.
77. List three characteristics of fodder crops.
78. Why is animal husbandry important? (3 points)
79. Explain three benefits of organic farming.
80. Describe pisciculture in brief.

H. Long Answer – 4 Marks (10)

81. Differentiate between manures, fertilizers and biofertilizers (any 4 points).
82. Explain four methods of crop protection management.
83. Write four points about poultry farming.
84. Describe four advantages of intercropping.
85. Write about crop production management practices.
86. Discuss irrigation methods with examples.
87. Explain four benefits of composite fish culture.
88. Write four differences between organic and inorganic farming.
89. Explain animal husbandry practices for cattle.
90. Describe apiculture and its importance.

I. Long Answer – 5 Marks (5)

91. Describe crop variety improvement in detail.
92. Explain mixed cropping, intercropping and crop rotation with examples.
93. Write a note on poultry farming and its economic importance.
94. Discuss pisciculture and its advantages.
95. Write a detailed note on bee keeping in India.

J. Case Study Questions (5)

Case Study 1:
A farmer grows wheat in one season and legumes in another season.

• Q96. What is this practice called?
• Q97. Why are legumes useful for soil?

Case Study 2:
A fish farmer grows 6 species of fish with different food habits in one pond.

• Q98. Name this practice.
• Q99. How does it increase yield?

Case Study 3:
A farmer uses earthworms to prepare manure.

• Q100. Name this practice and state one of its advantages.