A) Sir Ronald Ross discovered the cause of malaria
B) Vasco de Gama discovered the sea route to India in 15th century
C) Edward Jenner discovered vaccination
D) Henry Cavendish discovered oxygen
Correct Answer: D
Solution :
Joseph Priestley discovered oxygen in 1774, after its discovery people got to know age-old questions of why and how things burn.
You need to login to perform this action.
You will be redirected in
3 sec
