Radiocarbon is produced in the atmosphere as a result of
Options: collision between fast neutrons and nitrogen nuclei present in the atmosphere, action of ultraviolet light from the sun on atmospheric oxygen, action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere, lightning discharge in atmosphere
Options: UNESCO for exceptional contribution of efforts to popularise science, Indian Military., Jnanpith, a cultural literacy society for encouraging creative writing in modern languages, Indian Adult Education Association for outstanding contribution of adult literacy in India
Options: the President of America during World War I, the creator of cartoon films starring popular cartoon characters Mickey Mouse and Donald Duck, the British physician known for his discovery of Addison's disease, None of the above
Which of the following factors are responsible for the rapid growth of sugar production in south India as compared to north India?Higher per acre field of sugarcaneHigher sucrose content of sugarcaneLower labour costLonger crushing period
Options: I and II, I, II and III, I, III and IV, I, II and IV
From the following, choose the set in which names of Secretary-Generals of the UNO are arranged in correct chronological order?
Options: U Thant, Kurt Waldheim, Dag Hammarskjoeld, Trygve Lie., Trygve Lie, Dag Hammarskjoeld, U Thant, Kurt Waldheim., Trygve Lie, U Thant , Dag Hammarskjoeld, Kurt Waldheim., U Thant, Dag Hammarskjoeld, Trygve Lie, Kurt Waldheim.
Options: when the bowler bowls out three batsman with three successive balls, when the batsman intercepts the ball with his leg or any part of his body between the wicket, when the batsman, while hitting the ball, strikes his own wicket with his bat or body and is declared out, None of the above