The steam engine was invented by:
- (A) James Watt
- (B) James Joule
- (C) Isaac Newton
- (D) Thomas Newcomen
- (D) Thomas Newcomen
‘Cholera Vaccine’ was developed by:
- (A) Edward Jenner
- (B) Leon Calmethe
- (C) John F. Enders
- (D) Louis Pasture
- (D) Louis Pasture
Antibiotic “Penicillin” was discovered by:
- (A) Joseph Lister
- (B) James Blundell
- (C) William Harvey
- (D) Alexander Fleming
- (D) Alexander Fleming
Who discovered ‘Vitamin A, B and D’?
- (A) Roebuck
- (B) McCollum
- (C) Nicolle
- (D) Jenner
- (B) McCollum
‘Chlorine’ was discovered by:
- (A) Freud
- (B) Dohl
- (C) Fermi
- (D) Scheele
- (D) Scheele
In 1907, Electric Washing Machine was invented by an American named:
- (A) John Kay
- (B) A.J Fisher
- (C) E. Thomson
- (D) Charles Strite
- (B) A.J Fisher
Who invented chronometer?
- (A) John Harrison
- (B) Marconi
- (C) John Dalton
- (D) Roemer
- (A) John Harrison
The rings in Saturn were discovered by:
- (A) Tycho Brahe
- (B) Galileo
- (C) Newton
- (D) Giordano Bruno
- (B) Galileo
Who discovered the solar system?
- (A) Galileo
- (B) Kepler
- (C) Copernicus
- (D) Newton
- (C) Copernicus
Who discovered the satellites of Jupiter?
- (A) Kepler
- (B) Newton
- (C) Tayco Brake
- (D) Galileo
- (D) Galileo