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Study Material for Class 9 Science Chapter 15 Improvement in Food Resources
Class 9 Science students should refer to the following Pdf for Chapter 15 Improvement in Food Resources in Class 9. These notes and test paper with questions and answers for Class 9 Science will be very useful for exams and help you to score good marks
Class 9 Science Chapter 15 Improvement in Food Resources
CBSE Class 9 Science Improvement in food resources Sure Shot Questions A. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.
Fill In the Blanks
1. ______________and ______________are the main sources of nutrient supply to crops.
2. ______________and ______________provide us with all our animal and plant food.
3. The science of growing vegetables, fruits and ornamental plants is called ______________.
4. Composting done using earthworms is called ______________.
5. Cereals provide us ______________ (carbohydrates/proteins/fats).
6. Pulses give us ______________(carbohydrates/proteins/fats).
7. ______________and ______________ are a rich source of vitamins and minerals.
8. Pests, nematodes etc. are ______________ (biotic/abiotic) factors that affect crop production.
9. In order to get maximum returns, different crop combinations are grown on the same field in a pre-planned succession. This process is called ______________.
10. Apis dorsata and Apis florae are varieties of ______________(Indian/Italian) bee.
11. Apis mellifera is an ______________ (India/Italian) variety of honey bee used for commercial production of honey.
12. Crossing between genetically dissimilar plants is called ______________.
13. Nutrients required by plants in large quantities are called ______________.
14. Organic substances of animal or plant origin that is added to the soil to increase its fertility and structure are called ______________.
15. The practice of growing two or more crops simultaneously on the same field is called ______________.
16. Unwanted plants in the cultivated field are called ______________.
17. Cattle used for farm labour is called ______________.
18. Vitamin _____ and ____ (A, B, C, D , K) levels are kept high in the poultry feeds.
19. Bos indicus are the species of ______________.
20. Pomphret, mackerel, tuna, sardines, and Bombay duck are examples of ______________(marine/river) fish.
21. Marine fish capture is done by fishing nets guided by ______________ and ______________.
22. Micro-nutrients or Food additives strengthen ______________ system of the cattle and improve their ______________ and stimulate digestion.
23. The basic advantages of inter-cropping are that it maintains soil ______________and controls ______________.
24. Red Sindhi and Sahiwal are breeds of ______________.
25. Xanthium, Cyperinus rotundus and Parthenium plants generally grow along paddy plants. Such plants are called ______________.
26. What is domestication?
27. What are the major sources of food? Name the commercial practices we perform to obtain the food.
28. Name the revolution which led to better and efficient production and availability of milk.
29. Define animal husbandry.
30. Name the programmes executed in India to increase food production.
31. What are the various crops seasons in India?
32. Name the approaches used to enhance crop yield.
33. What are milch animals?
35. What is broiler?
36. Give examples of cereals that give us carbohydrates.
37. Name some pulses that give us proteins.
38. Give examples of oilseeds that provide us fats.
39. Give examples of fodder crops.
40. Name the biotic factors that affect on crop production.
41. Name the nutrients that plants take from air?
42. From where do plants acquire the following nutrients?
(ii) Hydrogen
43. List the nutrients that plants absorb from soil.
44. What are manures?
45. What is the full form of IARI?
46. What are the desirable agronomic characteristics for crop improvement?
47. What are Macro-nutrients?
48. List examples of Macro-nutrients for plants?
49. List the seven micro-nutrients taken by plants?
50. Based on kinds of biological material used, how many types of manures are there?
51. What are fertilizers? Give two examples.
52. Out of manures and fertilizers, which one is nutrient specific?
53. What is the most common source of irrigation in India?
54. Give examples of commonly used irrigation systems in our country?
55. What is vermicompost?
56. Manures are useful for short term benefits or long-term benefits?
57. Fertilizers are useful for short term benefits or long-term benefits?
58. What is organic farming?
59. What is the full form of NPK?
60. What is lodging?
61. What is mixed cropping?
62. Give examples of mixed cropping?
63. Define inter-cropping.
64. Give examples of inter-cropping.
65. Name the two common weeds of wheat and rice crop.
66. What are weeds?
67. Give examples of Pesticides
68. Give examples of fumigants.
69. Give examples of two major weeds that grow during Kharif season.
70. Cereals largely fulfill which of the following energy requirement?
(a) Proteins
(b) Carbohydrates
(c) Fats
(d) Minerals
71. Which one is not a source of carbohydrate?
(a) Rice
(b) Millets
(c) Sorghum
(d) Gram
72. Which of the following is not included in 'organic farming'?
(a) compost and vermi-compost
(b) chemical fertilizers
(c) green manures
(d) crop rotation
73. Which one of the following species of honey bee is an Italian species?
(a) Apis dorsata
(b) Apis florae
(c) Apis cerana indica
(d) Apis mellifera
74. Which of the following is an incorrect statement regarding improvement in crop production?
(b) Profuse branching is good for fodder crops
(c) Variety resistance to biotic stress is a good factor to improve crops.
(d) Shorter duration of crop from sowing to harvesting is better option.
75. Which is the oldest breeding method?
(a) introduction
(b) hybridization
(c) mutation
(d) selection
76. Which of the following is not a type of biotic stress?
(a) diseases
(b) insect
(c) frost
(d) nematodes
77. Apiculture deals with
(a) Bee Keeping
(b) Rearing Pigs
(c) Rearing Cows and Buffaloes
(d) Rearing Silk Moths
78. Red Sindhi, Sahilwal, Jersey, Brown Swiss are breeds of
(a) Pigs
(b) Buffaloes
(c) Cows
(d) Fowl
79. Which of the following is not a marine fish?
(a) pomphret
(b) mackerel
(c) catla
(d) sardines
Please click the link below to download CBSE Class 9 Science Improvement in food resources Sure Shot Questions A.
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CBSE Class 9 Science Chapter 15 Improvement in Food Resources Study Material
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