41) What happens to temperature of boiling water on a higher elevation?
(A) Increases
(B) Decreases
(C) Stays the same
(D) may or may not change
42) Which disease is caused by dogs?
(A) Rickets
(B) Scurvy
(C) Rabies
(D) None of these
43) What is the temperature of human body in Fahrenheit?
(A) 97
(B) 99
(C) 96
(D) None of these
44) Swimming pool water is disinfected by which chemical?
(A) Nitric Acid
(B) Urea
(C) Acetic acid
(D) Chlorine
45) Blindness is caused by deficiency of which vitamin?
(A) Vit. B
(B) Vit. C
(C) Vit. A
(D) Vit. D
46) Vitamin C is richest in which fruit?
(A) Guava
(B) Mango
(C) Apple
(D) Pineapple
47) Soda water is carbonated by adding what?
(A) H2O
(B) H2
(C) O2
(D) CO2
48) One mile has how many kilometers?
(A) 4.60934
(B) 3.60934
(C) 2.60934
(D) 1.60934
49) What is unit of energy?
(A) Newton
(B) Joule
(C) Kg
(D) None
50) What is the filament of electric bulb made of?
(A) Silicon
(B) Graphite
(C) Tungsten
(D) Carbon