(1) Viral infection
(2) Contaminated water
(3) Bacterial infection
(4) Hereditary causes
72. Spinach leaves are rich source of
(1) Vitamin A
(2) Iron
(3) Carotene
(4) Vitamin E
73. Which of these is not a mosquito borne disease?
(1) Dengue fever
(2) Malaria
(3) Filariasis
(4) Goitre
74. Oranges are rich source of
(1) Carbohydrates
(2) Fats
(3) Proteins
(4) Vitamins
75. Which acid is produced when milk gets sour?
(1) Tartaric acid
(2) Butyric acid
(3) Lactic acid
(4) Acetic acid
76. AIDS stands for
(1) Acquired Immune Disease Syndrome
(2) Acquired Immunity Deficient Syndrome
(3) Acquired Immune Deficiency Syndrome
(4) Acquired Infection Deficiency Syndrome
77. Stem cuttings are commonly used for re-growing
(1) Cotton
(2) Banana
(3) Jute
(4) Sugar Cane
78. Persons with which blood group are called universal donors?
(1) AB
(2) A
(3) O
(4) B
79. Silk is produced by
(1) Egg of silkworm
(2) Pupa of silkworm
(3) Larva of silkworm
(4) Insect itself
80. Which amongst the following is the train introduced by Indian Railways bringing travel by AC class within the reach of a common man?
(1) August Kranti
(2) Jan Shatabdi
(3) Garib Rath
(4) Sampark Kranti
Answers— 71. (3) 72. (2) 73. (4) 74. (4) 75. (3) 76. (3) 77. (4) 78. (3) 79. (3) 80. (3)