Botany MCQ Multiple Choice Questions Answers - Page 2 for Practice

31. Roses can grow successfully if stock and scion are

32. Seed treatment is done to control

33. Seed treatment with Vitavex is the main controlling method of

34. SO2 and NO2 Produce pollution by increasing

35. SO2 pollution causes

36. Sound becomes hazardous noise pollution at level

37. Spot the odd one

38. Spraying of DDT produces pollution of

39. The desired varieties of economically useful crops are raised by

40. The following is not a plant growth regulator

41. The instrument, which is used for sowing of seed with fertilizer together at a time, is

42. The main atmospheric layer near the surface of earth is

43. The main function of NABARD is

44. The newspaper contains one of the following toxic material

45. The pH in soils can be raised by adding:

46. The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil

47. The word Agriculture is derived from

48. The worst enemy of ozone is

49. Thermal pollution is more common near

50. Tissue culture is a good technique to

51. Urea is a source of

52. Water blooms are formed by

53. Water logging of soil makes it physiologically dry because

54. What is the area in floriculture (in 1000 hectare) in India

55. Which gas of the atmosphere holds up ultraviolet rays ?

56. Which is not a green house gas?

57. Which is not applicable to vegetatively propagated plants

58. Which one is green manure

59. Which one is the major component of Bordeaux mixture

60. Which one of the following is natural insecticide


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