Botany MCQ Multiple Choice Questions Answers - Page 3 for Practice

61. Ozone hole is caused by

62. Ozone layer is found in

63. Pesticide responsible for Ozone depletion is

64. Pollutants released from paddy field is

65. Pudding is done to

66. Role of CFC present in atmosphere is to

67. Root suckers are

68. Rootex contains

69. Roses can grow successfully if stock and scion are

70. Seed treatment is done to control

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

72. SO2 and NO2 Produce pollution by increasing

73. SO2 pollution causes

74. Sound becomes hazardous noise pollution at level

75. Spot the odd one

76. Spraying of DDT produces pollution of

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

78. The following is not a plant growth regulator

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

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

81. The main function of NABARD is

82. The newspaper contains one of the following toxic material

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

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

85. The word Agriculture is derived from

86. The worst enemy of ozone is

87. Thermal pollution is more common near

88. Tissue culture is a good technique to

89. Urea is a source of

90. Water blooms are formed by


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