Mercury is the only metal that is in liqid form at room temperature. Caesium, Gallim and Rubidium are also metals that are in liquid form but at slightly high temperature than the room temperature.
The expansion of the rail networks led to better transport system for trading between many parts of the nation and the steel is the main component in making the rails and the locomotive itself resulting in the growth of the steel industry.
Other than being the politician of India, Sushma Swaraj is Advocate by profession. She was the first women chief minister of Delhi for a brief period, Second women Minister for External Affairs after Indira Gandhi.
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