Hey there,
Your question states: <span>When was electricity is important in the second industrial revolution?
In the year </span>

was when it was really important to use electricity was very important. In this time, it was in the second industrial revolution.In this time, the second industrial revolution, it was very intense, very poor and crazy. People had very little money and clothes and they stink (sadly) and there life was just very bad. So during this time, they really needed electricity was very important to help with anything.
Hope this helps you.
~Jurgen
“ During the Cold War era, President John F. Kennedy invoked the Monroe Doctrine during the 1962 Cuban Missile Crisis, when he ordered a naval and air quarantine of Cuba after the Soviet Union began building missile-launching sites there.”
-1 13/20
bring down your -1 (that's your whole number). Divide 65/100 and you get 13/20. So, your answer is 1 13/20.
The largest building is located in New York.