71) For water purification, we use
(A) Chlorine
(B) Bromine
(C) Florine
(D) Iodine
72) Deficiency of chloride cause the impaired growth in
(A) Animals
(B) Infants
(C) Plants
(D) Young man
73) The human blood is divided into
(A) Two groups
(B) Three groups
(C) Four groups
(D) Five groups
74) Which type of blood of individuals are known as universal donor
(A) Type A
(B) Type B
(C) Type AB
(D) Type O
75) Which type of blood of individuals are universal recipients
(A) Type A
(B) Type AB
(C) Type B
(D) Type O
76) A man can survive without food for at least
(A) One month
(B) Two months
(C) Three months
(D) Four months
77) The muscles, tissues and blood all are made up of
(A) Carbohydrates
(B) Proteins
(C) Vitamins
(D) Fats
78) One gram of carbohydrates give energy of the amount
(A) 2 K Calories
(B) 4.1 K Calories
(C) 6.3 K Calories
(D) 8.0 K Calories
79) What amount of fats give energy of 9.3 K Calories
(A) 0.5 gram
(B) 1.0 gram
(C) 2.0 gram
(D) 4.1 gram
80) The amount of energy in wheat is
(A) 100 K Calories / 100 gm
(B) 245 K Calories / 100 gm
(C) 348 K Calories / 100 gm
(D) 490 K Calories / 100 gm