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!
It's impossibe that bitcoin will be killed,and it's impossible that internet will be shoutdown because almost all business rely on the internet,our government do not allow this to happen becausevour economy will also suffer without internet.