Botany Multiple Choice Questions and Answers

81. The main function of NABARD is

1. Farmers loaning
2. Agricultural research
3. Refinancing to agricultural financing institutions
4. Development of agriculture

82. The newspaper contains one of the following toxic material

1. Mg
2. Cd
3. Pb
4. Hg.

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

1. Sand
2. lime
3. sulphur
4. nitrogen

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

1. Mulching
2. Desertification
3. Incineration
4. Leaching

85. The word Agriculture is derived from

1. Greek
2. Latin
3. Arabic
4. French

86. The worst enemy of ozone is

1. Liquid NH3
2. SO2
3. CH4
4. CO.

87. Thermal pollution is more common near

1. Hot water springs
2. Coal based power plants
3. Tropical regions
4. Temperate regions.

88. Tissue culture is a good technique to

1. Cross two varieties
2. Rapidly increase the size of a trees by strengthening the stem
3. Eliminate virus
4. Improve yield of crops

89. Urea is a source of

1. Phosphorous
2. Nitrogen
3. Potassium
4. All of the above

90. Water blooms are formed by

1. Lemna
2. Hydrilla
3. Water hyacinth
4. Planktonic algae.