Botany Quiz Question with Answer

61. Which one of the following is normally not an atmospheric pollutant ?

  1. CO
  2. CO2
  3. SO2
  4. Hydrocarbon.

62. Which Pollutant causes leaf curling

  1. CO
  2. H2S
  3. O3
  4. SO2

63. World Environment Day is

  1. 28th February
  2. 5th June
  3. 7th August
  4. 10th April

64. A common example of stem tuber is

  1. Ginger
  2. Garlic
  3. Onion
  4. Potato

65. A green house gas is

  1. H2
  2. CO
  3. CO2
  4. N2.

66. A low branch with a node is bent down and covered with soil in

  1. Marcotting
  2. Layering
  3. Cutting
  4. Budding

67. A plant breeder: waists to develop a disease resistant variety. What should he do first?

  1. Hybridisation
  2. Mutation
  3. Selection
  4. Production of crop

68. A variety or strain produced by horticultural or agricultural techniques and not normally found in natural population is called

  1. Hybrid
  2. Tissue culture
  3. GMO
  4. Cultivar

69. Acid rain is caused by

  1. SO2 and NO2
  2. SO2 and CO
  3. NH3 and CO
  4. SO2 and NH3.

70. Advantages of Artificial Methods of Vegetative Reproduction include

  1. Crops with better quality
  2. Crops with more yield
  3. Ability to produce plants with desirable qualities
  4. All of these

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