Cholera vaccine was developed by:
(a) Edward Jenner
(b) Leon Calmethe
(c) John F. Enders
(d) Waldemar Mordecai Haffkine
“Anaemia” is caused due to deficiency of:
(a) Iron
(b) Iodine
(c) Vitamin
(d) Pellagra
The unit for measuring electric current is:
(a) Kelvin
(b) Candela
(c) Ampere
(d) None of these
Citrus fruit is the best natural source of:
(a) Amino acid
(b) Citric acid
(c) Ascorbic acid
(d) Malic acid
What type of acid is used in car batteries?
(a) Hydrochloric acid
(b) Sulphuric acid
(c) Mercury
(d) Nitric acid
By which organ does a snake hear?
(a) Ear
(b) Eyes
(c) Tongue
(d) Tail
Light year is a unit of measurement of:
(a) Speed of light
(b) Stellar distances
(c) Speed of rockets
(d) Speed of aeroplane
A handwritten message can be instantly transmitted as such to any part of the world through:
(a) Speed post
(b) Telex
(c) Telephone
(d) Fax
The conversion of electrical energy into chemical energy is observed in:
(a) Fan
(b) Storage battery
(c) Heater
(d) Incandescent bulb
Distant objects can be seen with the help of:
(a) Chronometer
(b) Microscope
(c) Telescope
(d) Spectroscope