01- The discovery of radioactivity by Henry Beckerl.


02- The production of Tabens is the largest in the world.


03- The scarring of red is the lowest, so when the sun rises or sinks, the sun appears red.


04- Hockey was included in the Olympics in 1928.


05- Banabhatta has composed Kadambari.


06- Greenwich time (0 degree longitude) is an international standard.


07 – The period of Amavasya from the full moon is called the Krishna Paksha.


08- Nitrogen and oxygen are called permanent elements of the atmosphere.


09- The digestion of starch is saliva in the body.


10- The world’s largest flower rafflesia.


11- There are 300 bones in the newborn. Whereas adult person has 206 bones.


12- Sun Temple of Konark is situated in Odisha.


13 – The second battle of Tarain occurred between Muhammad Gauri and Prithviraj in 1192.


14- The travelers of Morocco (Africa) traveled to India under the rule of Ibnbuttu Muhammad bin Tughluq.


15- Silver coins run by Iltutmish were called Taka.


The 16-pencil lead is made of graphed.


17- The first meeting of the Constituent Assembly took place on 09 December 1946.


18- Radium was discovered by Pierre and Madam Curie.


19-Rutherford discovered the atom, alpha ray, beta ray and gamma rays.


20- Inverter works to convert DC to AC.