Improvement of food resources Worksheet-7

Improvement of food resources Worksheet-7

31.  Which one of the following fish is a bottom feeder?

A.  Rohus           B.  Mrigals        C. Grass carps  D. Catlas

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

A. Nitrogen                                    B. Phosphorus

C. Iron                                             D. Potassium

33. Which of the following statement is not correct?

A.  Hybridisation means crossing between genetically similar plants

B.  Cross between two varieties is called as inter varietal hybridisation

C. Introducing genes of desired character into a plant gives genetically modified crop

D. Cross between plants of two species is called as inter specfic hybridisation

34. Weeds compete with the crops in a field for:

A.  Food             B.  Space            C.  Light             D. All of these

35. Which of the following cattle feed contains high level of protein?

A. Roughage                                  B. Concentrate

C. Straw                                          D. All of these

36.  Which of the following an oil yielding plant?

A. Lentil                                          B. Sunflower

C. Cauliflower                               D. Hibiscus

37.  Which of the following is an example of fodder crop?

A. Oats               B.  Lentil            C. Castor            D. Soyabean

38. Trait Dwarfness is selected in cereals because they:

A. Consume less nutrients.

B. Are easy to harvest.

C. Give good fodder to cattles.

D. Show disease-resistance.

39. Which of the following type of fish culture is practiced with five or six species of fish having different food habits in a single fishpond?

A. Mariculture                              B. Composite fish culture

C. Capture fishing                        D. Pisciculture

40. Italian bees are selected because:

A. they have high honey collection capacity

B. they stay n hive for long period of time

C. They breed very well

D. all of these

41.  Oysters are cultivated for pearls through:

A. Capture farming                      B. Culture fishery

C. Composite fishery                   D. Inland fishery

42.  which of the following group contains onl kharif crops?

A. paddy, soyabean, maize, cotton

B. paddy, maize, mustard, green gram

C. wheat, maize, mustard, green gram

D. paddy, linseed, maize, cotton

43. Infection caused by flukes in cattle damages the:

A. Skin                                            B.  Stomach

C. Liver                                           D. All of these

44. Which of the following statement is true?

A. Exotic breeds of cattle are selected for long lactation periods

B. Local breeds of cattle are selected for long lactation periods

C. Exotic breeds of cattle are selected for high resistance for diseases

D. Local breeds of cattle are selected for low resistance for diseases

45. in mollusca, shell is made up of:

A. calcium carbonate                  B. calcium pectate

C. Chitin                                         D. Cellulose

Answer Key:

31. B
32. C
33. A
34. D
35. B
36. B
37. A
38. A
39. B
40. D
41. A
42. A
43. C
44. A
45. A