Well, no electricity, and no internet connection would kill BTC for sure! You wouldn't be able to make any transactions without these.
Other issue can be all the countries in the world ban BTC, but this will not restrict it's circulation, as no internet connection do!
as far as I know the bitcoin archive are in for conditioning,hard drive so no electricity, no internet not kill it. However it will not be traded, only exists in the form of worthless. no electricity, no internet, the world will going back to Neolithic
Exactly, bitcoin can never be shutdown unless it will be hacked and make the system to destroyed which can cause a totally shut down but as of this moment it's impossible to be happened. Bitcoin was designed to its highly secured system which can't easily to be hacked nor to destroy the system. As the bitcoin will works only via online system on the internet connection powered by the electricity it will never be shutdown at all.