81. The human body is immune to which disease?
(a) Jaundice
(b) Diabetes
(c) Small pox
(d) Tuberculosis
82. Which of the following chemicals is used for preserving fruit juice?
(a) Sodium benzoate
(b) Ammonium sulphate
(c) Sodium hydroxide
(d) None of these
83. Which of the following is not a cereal?
(a) Rice
(b) Barley
(c) Mustard
(d) Maize
84. Seeds can best be preserved in:
(a) Hot and dry condition
(b) Cool and dry condition
(c) Hot and wet condition
(d) Cool and wet condition
85. What is mixed farming?
(a) Cultivating different crops in the same farm
(b) Cultivating crops and keeping livestock in the same farms
(c) Cultivating different varieties of the same crop
(d) None of these
86. Which of the following is a mixed fertilizer?
(a) Urea
(b) NPK
(c) CAM
(d) Sulphate
87. Stem cuttings are commonly used for regrowing:
(a) Cotton
(b) Banana
(c) Sugarcane
(d) Mango
88. Citrus fruit products should not be preserved in vessels of:
(a) Tin
(b) Copper
(c) Steel
(d) Iron
89. Herbicides are used for the elimination of:
(a) Insects
(b) Weeds
(c) Pests
(d) Ringing
90. The science of vegetable culture is known as:
(a) Arboriculture
(b) Horticulture
(c) Apiculture
(d) Agriculture
91. Cotton fiber is rooted from:
(a) Seed
(b) Stem
(c) Root
(d) Leaf