Wednesday 27 March 2019

Class IX IMPROVEMENT IN FOOD RESOURCES

Practice Paper
Subject Biology (2020)
 CH- 15  IMPROVEMENT IN FOOD RESOURCES  
Class IX
I.Very Short Answer Type Questions:
  1. Define photosynthesis.
  2. Write the name of any two food materials which provide us carbohydrates
  3. What is the embryo transfer technique?
  4. What is the National Dairy Research Institute? Where is it located?
  5. Cows A and B are the same weight. Cow A is fed on grass and cow B is fed on maize, grass, barley, etc. Which do you expect to give a higher quality of milk?
  6. What is the percentage of fat content in the milk from the Murrah and Sruti?
  7. What has the green revolution laid too?
  8. What has the white revolution led to?
  9. What are the photoperiods related to?
  10. What are the duration of Kharif and Rabi seasons?
  11. Write the name of three stages in which farming practices are divided.
  12. What do you mean by organic farming?
  13. Why does drought occur?
  14. What is mixing cropping?
  15. What is intercropping?
  16. Explained FYM.
  17. Name any two kinds of healthy animals. 
  18. Name any two factors on which variety improvement is done.
  19. What is the name given to the crop obtained by introducing a gene that provides the desired characteristics?
  20. Name two breeds of buffaloes. 
  21. Name two types of manure on the basis of the kind of biological material involved. 
  22. What is fish farming called?
  23. Name abiotic pesticides. 
  24. What is the main benefit of mixing cropping? 
  25. What is inner cropping? 
  26. What is crop rotation? 
  27. Give an example of the crops grown in 2 years rotation? 
  28. How are diseases in plants caused? 
  29. Name the biotic factors responsible for storage losses in agricultural produce
  30. What is the purpose of cattle husbandry? 
  31. Name two cattle breeds that show excellent resistance to disease. 
  32. Name the internal pesticides which affect the stomach in strength intestine and liver in cattle. 
  33. What is the purpose of poultry farming? 
  34. State any two control measures to be taken before grains are used.
  35. Name any two indigenous breeds of cattle.
II. Short Answer Type Questions:
  1. There is tremendous scope to develop fisheries in India. Give reasons.
  2. The production of food from animal sources has increased in the last few decades. Justify.
  3. Why are wrestlers and sportsmen recommended to have an egg, meat, and fish?
  4. Give two advantages of Holstein Friesian over the red Sindhi.
  5. How can you classify the practice involved in improving crop yields?
  6. Differentiate between manure and fertilizer.
  7. Explain the advantages of mixed farming.
  8. How are crop selected from crop rotation?
  9. Why should pesticides be used judiciously? 
  10. How is intercropping different from mixed cropping? 
  11. Why storage of grains leads to losses? What preventive and control measures are adopted before grains are stored for future use?
  12. Define animal husbandry. Why it is essential?
  13. What do you mean by livestock? Why its production needs to be improved?
  14. What is the importance of roughage and concentrates as components of animals fed? Which additive is added in the cattle feed for nutrients?
  15. Write the different ways by which crop production can be increased.
  16. Write the two types of manure which is based on the kind of biological material used.
  17. Define hybridization. State its type.
  18. What are manures? State two types of manure. How does manure affect soil fertility?
  19. Define crop rotation. What factors should be selected for crop rotation?
  20. Write three management practices while designing a shelter for cattle.
  21. Write one point difference between the tube well and dug well. How is the liver lift system adopted to supply water to the agricultural land?
  22. Giving an example of each, write one point of difference between micronutrient and macronutrient.
  23. What are the rabi and Kharif crops? Give one example of each. What is the photoperiod?
  24. Define capture fishing and culture fishery. Why are prawns and oysters cultivated?
  25. Differentiate between compost and vermicompost. What are the benefits of using manure in crop production?
  26. Differentiate between milch and draught animals. Name the two species of Indian cattle.
  27. Name two local and exotic breeds of bees used for commercial production of honey. List any three qualities for which foreign breeds are adopted.
  28. Why are fertilizer and manure used in the field? A farmer irrigated his field excessively just after applying fertilizers. Is it a correct practice?
  29. State two characteristics of an ideal cattle shed. Cattles are mainly reared for milk or performing agricultural tasks. What are these two categories of cattle known as? 
  30. What are the different kinds of irrigation systems adopted in our country to supply water to agricultural lands? Mention any three.
III. Long Answer type questions:
  1. Write the two advantages of composite fish culture. What is the application of hormonal stimulation in fish culture? Write one problem associated with composite fish culture.
  2. (a) Differentiate between broilers and layers.
    (b) Write two factors that can cause diseases to poultry fowls.
    (c) Nutritional requirements of broilers difference from egg layers. 
  3. List any six factors for which a variety of improvements in the crop is done.
    Difference between :
    (a) Inland fishery and marine fishery. 
    (b) Culture fishery and capture fishery.
  4. State one point of difference between biofertilizers and fertilizers. Give one example of each. What is the advantage of using biofertilizers over fertilizers?
  5. What are the weeds? Give two examples. Explain why is the removal of weeds necessary from the cultivated fields? Mention one method to control the growth of weeds. 
  6. (a) Give an example of each of bottom feeder, surface feeder and middle zone feeder that can be grown in composite fish culture.
    (b) State the problem faced in such a culture. Mention the way to overcome the problem.
  7. Define fumigation and fumigant. Give an example of the fumigant. How does fumigation differ from spraying? Give two points
  8. What are pests? How can plant pests be controlled? In what way bio-pesticides are better than chemical pesticides?
  9. (a) Classify the following as food or fodder crop: wheat berseem, oats, black gram.
    (b) List the two ways of incorporating desirable characters into crop varieties.
    (c) State two desirable agronomic characteristics for crop improvement.
  10. (a) Classify the following as Rabi and Kharif crop: paddy,  soya bean, wheat, and mustard.
    (b) Why are certain crops grown in a particular season? Give two reasons.
    (c) Explain how is green manure formed?
  11. India has a wide variety of water resources and a highly varied climate. Describe in briefly any five kinds of irrigation system adapted to supply water to agricultural lands.
  12. Improved poultry breeds are developed for some desirable traits. List five such desirable traits.
  13. (a) List the different ways in which biotic and abiotic factors affect stored food grains.
    (b) What preventive and control measures need to be taken before and after storing the grains name two weeks?
  14. (a) What is the common name of Apis flora and Apis Indica?
    (b) Name one Italian bee variety, also justify the use of the Italian bee for honey production. Giving two reasons.
    (c) State one factor which affects the quality of honey produced
  15. Briefly describe the formation of vermicompost and green manure. How can the poultry farms be prevented from various diseases? State any three methods.
  16. Unpredictable monsoon/droughts / low rainfall is adversely affecting the Indian agriculture
  17. (a) Mention any two initiatives that have been adopted to increase the availability of water for agricultural purposes.
  18. (b) State two advantages of making check dams.
  19. (c) Briefly describe the canal and river lift systems of irrigation.
  20. Describe briefly the traits and their utilities important for a cereal crop in the improvement of varieties. 
  21. Mention the type of loss caused by the inappropriate conditions of moisture and temperature prevailing during storage grains.
  22. (a) Name the two components of cattle feed and their function.
  23. (b) Name any two milch breeds of cow.
  24. What is organic farming? Weeds are unwanted plants in the cultivated field give some methods to eradicate them.
  25. Explain why legume crop does not require nitrogenous fertilizers?
  26. Why farmers grow guar before sowing of growing crop seeds?
NCERT QUESTIONS:
  1. What do we get from cereals, pulses, fruits, and vegetables?
  2. How do biotic and abiotic factors affect crop production? 
  3. What are the desirable agronomic characteristics for crop improvements?
  4. What are macro-nutrients and why are they called macronutrients?
  5. How do plants get nutrients?
  6. Compare the use of manure and fertilizers in maintaining soil fertility.
  7. Which of the following conditions will give the most benefits? Why?
    (a) Farmers use high-quality seeds, do not adopt irrigation or use fertilizers. 
    (b) Farmers use ordinary seeds, adopt irrigation and use fertilizer. 
    (c) Farmers use quality seeds, adopt irrigation, use fertilizer and use crop protection measures.
  8. Why should preventive measures and biological control methods be preferred for protecting crops?
  9. What factors may be responsible for losses of grains during storage?
  10. Which method is commonly used for improving cattle breeds and why?
  11. What management practices are common in dairy and poultry farming? 2. What are the differences between broilers and layers and in their management?
  12. Discuss the implications of the following statement: “It is interesting to note that poultry is India’s most efficient converter of low fiber foodstuff (which is unfit for human consumption) into highly nutritious animal protein food.”
  13. How are the fish obtained?
  14. What are the advantages of composite fish culture?
  15. What are the desirable characters of bee varieties suitable for honey production?
  16. What is pasturage and how is it related to honey production?
  17. Explain any one method of crop production which ensures high yield.
  18. Why are manure and fertilizers used in fields?
  19. What are the advantages of inter-cropping and crop rotation?
  20. What is genetic manipulation? How is it useful in agricultural practices?
  21. How do storage grain losses occur? 
  22. How do good animal husbandry practices benefit farmers?
  23. What are the benefits of cattle farming?
  24. For increasing production, what is common in poultry, fisheries, and bee-keeping?
  25. How do you differentiate between capture fishing, mariculture, and aquaculture?

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