51) In which month the distance between sun and the earth is shortest?
(A) January
(B) June
(C) August
(D) December
52) Which organ in the body purify blood?
(A) Kidney
(B) Spleen
(C) Liver
(D) Lungs
53) Which wave travel with almost the velocity of light?
(A) Ultra-sonic wave
(B) Radio wave
(C) Blue wave
(D) Solar wave
54) The summer with the study and cultivation of fruit is known as:
(A) Ecology
(B) Pomology
(C) Ophthalmology
(D) Mycology
55) Which is the best source of protein?
(A) Chicken
(B) Cheese
(C) Fish
(D) Beef
56) The frequency of which of the following is highest?
(A) Light waves
(B) Ultrasonic waves
(C) Radio waves
(D) None of these
57) The normal pulse beat of a human body is between:
(A) 72-80
(B) 76-82
(C) 80-120
(D) 78-110
58) Post-Mortem examination of a body is known as:
(A) Biopsy
(B) Autopsy
(C) Dropsy
(D) Slimpsy
59) Speed of sound in air is:
(A) 480 m/s
(B) 331 m/s
(C) 300 m/s
(D) 280 m/s
60) Which acid is used in car batteries?
(A) Oxalic acid
(B) Formic acid
(C) Sulphuric acid
(D) Hydrochloric acid