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.