Chapter 15 Improvement In Food Resources

Question 1. Which one is an oil yielding plant among the following?

(a) Lentil

(b) Sunflower

(c) Cauliflower

(d) Hibiscus

Question 2. Which one is not a source of carbohydrate?

(a) Rice

(b) Millets

(c) Sorghum

(d) Gram

Question 3. Find out the wrong statement from the following

(a) White revolution is meant for increase in milk production

(b) Blue revolution is meant for increase in fish production

(c) Increasing food production without compromising with environmental quality is called as sustainable agriculture

(d) None of the above

Question 4. To solve the food problem of the country, which among the following is necessary?

(a) Increased production and storage of food grains

(b) Easy access of people to the food grain

(c) People should have money to purchase the grains

(d) All of the above

Question 5. Find out the correct sentence

(i) Hybridisation means crossing between genetically dissimilar plants

(ii) Cross between two varieties is called as inter specific hybridisation

(iii) Introducing genes of desired character into a plant gives genetically modified crop

(iv) Cross between plants of two species is called as inter varietal hybridisation

(a) (i) and (iii)

(b) (ii) and (iv)

(c) (ii) and (iii)

(d) (iii) and (iv)

Question 6. Weeds affect the crop plants by

(a) killing of plants in field before they grow

(b) dominating the plants to grow

(c) competing for various resources of crops (plants) causing low availability of nutrients

(d) all of the above.

Question 7. 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

Question 8. Find out the correct sentence about manure

(i) Manure contains large quantities of organic matter and small quantities of nutrients.

(ii) It increases the water holding capacity of sandy soil.

(iii) It helps in draining out of excess of water from clayey soil.

(iv) Its excessive use pollutes environment because it is made of animal excretory waste.

(a) (i) and (iii)

(b) (i) and (ii)

(c) (ii) and (iii)

(d) (iii) and (iv)

Question 9. Cattle husbandry is done for the following purposes

(i) Milk Production

(ii) Agricultural work

(iii) Meat production

(iv) Egg production

(a) (i), (ii) and (iii)

(b) (ii), (iii) and (iv)

(c) (iii) and (iv)

(d) (i) and (iv)

Question 10. Which of the following are Indian cattle?

(i) Bos indicus

(ii) Bos domestica

(iii) Bos bubalis

(iv) Bos vulgaris

(a) (i) and (iii)

(b) (i) and (ii)

(c) (ii) and (iii)

(d) (iii) and (iv)

Question 11. Which of the following are exotic breeds?

(i) Brawn

(ii) Jersey

(iii) Brown Swiss

(iv) Jersey Swiss

(a) (i) and (iii)

(b) (ii) and (iii)

(c) (i) and (iv)

(d) (ii) and (iv)

Question 12. Poultry farming is undertaken to raise following

(i) Egg production

(ii) Feather production

(iii) Chicken meat

(iv) Milk production

(a) (i) and (iii)

(b) (i) and (ii)

(c) (ii) and (iii)

(d) (iii) and (iv)

Question 13. Poultry fowl are susceptible to the following pathogens

(a) Viruses

(b) Bacteria

(c) Fungi

(d) All of the above

Question 14. Which one of the following fishes is a surface feeder?

(a) Rohus

(b) Mrigals

(c) Common carps

(d) Catlas

Question 15. Animal husbandry is the scientific management of

(i) animal breeding

(ii) culture of animals

(iii) animal livestock

(iv) rearing of animals

(a) (i), (ii) and (iii)

(b) (ii), (iii) and (iv)

(c) (i), (ii) and (iv)

(d) (i), (iii) and (iv)

Question 16. Which one of the following nutrients is not available in fertilizers?

(a) Nitrogen

(b) Phosphorus

(c) Iron

(d) Potassium

Question 17. Preventive and control measures adopted for the storage of grains include

(a) strict cleaning

(b) proper disjoining

(c) fumigation

(d) all of the above

Question 18. Match the column A with the column B

Question 19. Fill in the blanks

(a) Pigeon pea is a good source of ———.

(b) Berseem is an important———crop.

(c) The crops which are grown in rainy season are called———crops.

(d) ———are rich in vitamins.

(f) ——— crop grows in winter season.

Question 20. What is a GM crop? Name any one such crop which is grown in India.

Question 21. List out some useful traits in improved crop?

Question 22. Why is organic matter important for crop production?

Question 23. Why is excess use of fertilizers detrimental for environment?

Question 24. Give one word for the following

(a) Farming without the use of chemicals as fertilizers, herbicides and pesticides is known as ———.

(b) Growing of wheat and groundnut on the same field is called as ————.

(c) Planting soyabean and maize in alternate rows in the same field is called as ———.

(d) Growing different crops on a piece of land in pre-planned succession is known as———.

(e) Xanthium and Parthenium are commonly known as———.

(f) Causal organism of any disease is called as ———.

Question 25. Match the following A and B

Question 26. If there is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping?

Question 27. Group the following and tabulate them as energy yielding, protein yielding, oil yielding and fodder crop.

Wheat, rice, berseem, maize, gram, oat, pigeon gram, sudan grass, lentil, soyabean, groundnut, castor and mustard.

Question 28. Define the term hybridization and photoperiod.

Question 29. Fill in the blanks

(a) Photoperiod affect the————.

(b) Kharif crops are cultivated from————to————.

(c) Rabi crops are cultivated from————to————.

(d) Paddy, maize, green gram and black gram are————crops.

(e) Wheat, gram, pea, mustard are————crops.

Question 30. Cultivation practices and crop yield are related to environmental condition. Explain.

Question 31. Fill in the blanks

(a) A total of———nutrients are essential to plants.

(b) ———and———are supplied by air to plants.

(c) ———is supplied by water to plants.

(d) Soil supply———nutrients to plants.

(e) ———nutrients are required in large quantity and called as———.

(f) ——— nutrients are needed in small quantity for plants and are called ———.

Question 32. Differentiate between compost and vermicompost?

Question 33. Arrange these statements in correct sequence of preparation of green manure.

(a) Green plants are decomposed in soil.

(b) Green plants are cultivated for preparing manure or crop plant parts are used.

(c) Plants are ploughed and mixed into the soil.

(d) After decomposition it becomes green manure.

Question 34. An Italian bee variety A. mellifera has been introduced in India for honey production. Write about its merits over other varieties.

Question 35. In agricultural practices, higher input gives higher yield. Discuss how?

Question 36. Discuss the role of hybridisation in crop improvement.

Question 37. Define (i) Vermicompost

(ii) Green manure

(iii) Bio fertilizer

Question 38. Discuss various methods for weed control.

Question 39. Differentiate between the following

(i) Capture fishery and Culture fishery

(ii) Mixed cropping and Inter cropping

(iii) Bee keeping and Poultry farming

Question 40. Give the merits and demerits of fish culture?

Question 41. What do you understand by composite fish culture?

Question 42. Why bee keeping should be done in good pasturage?

Question 43. Write the modes by which insects affect the crop yield.

Question 44. Discuss why pesticides are used in very accurate concentration and in very appropriate manner?

Question 45. Name two types of animal feed and write their functions.

Question 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?

Question 47. Suggest some preventive measures for the diseases of poultry birds.

Question 48. Figure15.1 shows the two crop fields [Plots A and B] have been treated by manures and chemical fertilizers respectively, keeping other environmental factors same. Observe the graph and answer the following questions.

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

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

(ii) What is the reason for the different pattern of the two graphs?

Question 49. Complete the crossword puzzle (Fig.15.2)

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)