Metallurgy was well known by the Guptas,.as can be attested to by the iron pillar of Delhi. The correct option among all the options that are given in the question is the third option. This pillar is a glowing example of the metallurgical advancement that the Guptas had during that time. This pillar has not rusted for a long time.
Answer:
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Answer:
4) he invented the bessemer process, he patented the telephone
Explanation:
Alexander Graham Bell has had huge influence on the development of the industry in the United States and later in the world. This scientists managed to invent the telephone, and of course patented it. By inventing the telephone, Alexander Graham Bell made an impact on the industry and the society probably as he never would have imagined. The telephone enable the people to communicate with each other despite being separated physically by long distances, and the communication was almost at real time. This made life easier for lot of people tat lived far away from the families and friends. The industry too benefited a lot, as it was able to communicate with all sectors immediately and get the job done, instead waiting for letters or telegraphs to reach a certain sector, or talk in person.
The predecessor to the FCDA, the Office of Civilian Defense was abolished in June 1945 with the end of World War II. In the period between the end of the World War and 1949, when the Soviet Union detonated their first atomic weapon, little was given to the topic of civil defense. After the Soviets demonstration of their first atomic weapon there was a feeling of the need to do somethingthroughout both the American public and government.[5] This led to, among many actions, the creation of the Federal Civil Defense Administration by President Harry S. Truman in 1950.[6]
A purported website address for this government organization (rendered as "The F.C.D.A.") was briefly referenced in the 1998 American science fiction film Deep Impact at time marks 0:54:26, and 1:18:50, using a fictional website listed in the movie audio monologue and subtitles as "http://fcda.gov/". This seemingly fictional website (as used in the movie) has not been known to ever exist, and the Internet Archive and WHOIS databases carry no record of it being for any organization, government or otherwise.