Heavy water (D 2 O) is used in nuclear reactor as a moderator. The deuterium is an isotope of hydrogen. Its atomic mass is 2. Hence its molecular weight is 20u (2 + 18)
Influenza is caused by virus and all other three diseases are bacterial, Influenza, generally called flu, is an infectious disease caused by RNA viruses of family Orthomyxoviridae.
The rusting of iron nail takes place in the presence of air (oxygen) and water (moisture). It increases the weight of iron nail due to the formation of rust.
4Fe + $3O_2$ 2+ x$H_2O$ → $2Fe_2O_2$, x$H_2O$
Ram Prasad Bismil was the famous freedom fighter who was involved in the historic Kakori train robbery. He was born in 1897 at Shahjahanpur,Uttar Pradesh. On 9th August, 1925, Ram Prasad Bismil along with his fellow followers looted the money of the British government from the train while it was passing through Kakori, Lucknow. Except Chandrashekhar Azad, all other members of the group were arrested. Ram Prasad Bismil along with others was given capital punishment. This great freedom fighter of India was executed on 19th December, 1927.
Himadri Station is India's first Arctic research station located at Spitsbergen, Svalbard, Norway. It was inaugurated on the 1st of July, 2008 by the Minister of Earth Sciences
10 .With respect to Article 371 A of the Constitution of India, the Governor of which one of the following States has special responsibility with respect to law and order of the State?