Q. Which is the hardest substance in the human body?
? Tooth Enamel
Q. Who invented Zero?
Q. Which vitamin is available to the human body through sun bathing?
? Vitamin D
Q. Which branch of Medical Science deals with skin?
Q. Which instrument is used to measure the density of milk?
Q. The French Revolution began in which year?
Q. What is Magna Carta?
? A historical document curbing the powers of King
Q. The Russian Revolution of 1917 was led by?
Q. Battle of Waterloo was fought in the year?
Q. Karl Marx belonged to which country?