Which is the largest endocrine gland in the body? Ans:- Thyroid Which is the largest mammal in the world? Ans:- Whale fish Who discovered the blood group? Ans:- Land Steiner Which is the main ore of aluminium? Ans:- Bauxite Which was the first artificial satellite? Ans:- Sputnik-1 By which device mechanical energy is converted into electrical energy? Ans:- Dynamo What is the temporary memory of a computer called? Ans:- RAM-Random Excess Memory 08. What is measured by the Richter scale? Ans:- The intensity of the earthquake 09. Which metal has the most in the ground floor? Ans:- Aluminum Which planet is called the evening star? Ans:- Thank you What is the lowest surface of the atmosphere called? Ans:- Troposphere How long does it take for the earth to rotate 1 degree longitude? Ans:- 4 minutes 13. Plaster of Paris is made of? Ans:- Gypsum With whose help do fish breathe? Ans:- Gills 15. What is the action of making food by green plants called? Ans:- Photosynthesis By what process is the cream made from milk? Ans:- Centrifugal force Where is the headquarters of reserve bank of India? Ans:- Mumbai 18. Who is called The Frontier Gandhi? Ans:- Khan Abdul Gaffar Khan Which is the largest island in the world? Ans:- Greenland Who was the first President of independent India? Ans:- Dr. Rajendra Prasad Which is the first state to become the basis of language in India? Imp GK: Which mineral is found in monazite sand? UN Secretary-General condemns Houthi attacks on Saudi civilian sites